View Filing Data

Employee Benefit Plans (Tables)

3 Months Ended

Mar. 31, 2012


	Pension Plans						Post-Retirement Medical Plans
	Three Months Ended March 31,
	2012			2011			2012		2011
Components of Net Benefit Cost (Credit):
Service cost	$	172		$	163		$	11	$	15
Interest cost		6,902			7,067			53		70
Expected return on plan assets		(6,672	)		(7,622	)		–		–
Amortization of:
Prior service cost		701			740			–		–
Net actuarial loss		411			63			–		–

Net benefit cost	$	1,514		$	411		$	64	$	85

Condensed Consolidated Statements Of Financial Condition - USD ($) $ in Thousands	Mar. 31, 2012	Dec. 31, 2011
ASSETS
Cash and cash equivalents	$ 765,686	$ 1,003,791
Deposits with banks	257,685	286,037
Cash deposited with clearing organizations and other segregated cash	74,502	75,506
Receivables (net of allowance for doubtful accounts of $21,172 and $19,450 at March 31, 2012 and December 31, 2011, respectively):
Fees	436,201	402,843
Customers and other	71,152	83,111
Related parties	15,232	18,501
Total receivables, net	522,585	504,455
Investments	378,273	378,521
Property (net of accumulated amortization and depreciation of $265,223 and $266,673 at March 31, 2012 and December 31, 2011, respectively)	190,080	168,429
Goodwill and other intangible assets (net of accumulated amortization of $28,040 and $26,922 at March 31, 2012 and December 31, 2011, respectively)	395,962	393,099
Other assets	323,225	272,098
Total assets	2,907,998	3,081,936
Liabilities:
Deposits and other customer payables	274,690	288,427
Accrued compensation and benefits	210,439	383,513
Senior debt	1,076,850	1,076,850
Capital lease obligations	19,891	20,084
Related party payables	10,988	6,075
Other liabilities	454,362	440,131
Total liabilities	2,047,220	2,215,080
Commitments and contingencies
Common stock:
Additional paid-in-capital	638,868	659,013
Retained earnings	262,100	258,646
Accumulated other comprehensive loss, net of tax	(71,903)	(88,364)
Stockholders Equity Subtotal Before Common Stock Held By Subsidiary, Total	830,296	830,525
Class A common stock held by subsidiaries, at cost (3,267,892 and 3,492,017 shares at March 31, 2012 and December 31, 2011, respectively)	(91,962)	(104,382)
Total Lazard Ltd stockholders' equity	738,334	726,143
Noncontrolling interests	122,444	140,713
Total stockholders' equity	860,778	866,856
Total liabilities and stockholders' equity	2,907,998	3,081,936
Class A Common Stock [Member]
Common stock:
Common stock	1,231	1,230
Class B Common Stock [Member]
Common stock:
Common stock
Series A Preferred Stock [Member]
STOCKHOLDERS' EQUITY
Preferred stock
Series B Preferred Stock [Member]
STOCKHOLDERS' EQUITY
Preferred stock

Condensed Consolidated Statements Of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Condensed Consolidated Statements Of Comprehensive Income [Abstract]
Net income	$ 29,056	$ 59,983
OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX:
Currency translation adjustments	19,129	23,738
Amortization of interest rate hedge	264	264
Employee benefit plans:
Net actuarial loss (net of tax benefit of $1,282 and $1,935 for the three months ended March 31, 2012 and 2011, respectively)	(2,597)	(3,685)
Adjustment for items reclassified to earnings (net of tax expense of $297 and $255 for the three months ended March 31, 2012 and 2011, respectively)	815	548
OTHER COMPREHENSIVE INCOME, NET OF TAX	17,611	20,865
COMPREHENSIVE INCOME	46,667	80,848
LESS - COMPREHENSIVE INCOME ATTRIBUTABLE TO NONCONTROLLING INTERESTS	4,602	6,245
COMPREHENSIVE INCOME ATTRIBUTABLE TO LAZARD LTD	$ 42,065	$ 74,603

Business Acquisitions (Details) - USD ($) $ in Thousands	Mar. 31, 2012	Dec. 31, 2011	Dec. 30, 2011	Jul. 15, 2009
Business Acquisition [Line Items]
Aggregate fair value of the consideration recognized at the acquisition date				$ 61,624
Business acquisition, shares unrestricted or delivered			285,715
Class A Common Stock [Member]
Business Acquisition [Line Items]
Business acquisition number of common stock issued				1,142,857
Business acquisition common stock issuable on a non-contingent basis	47,474	47,474
Class A Common Stock [Member] \| Additional Common Stock [Member]
Business Acquisition [Line Items]
Business acquisition number of common stock issued subject to earnout criteria and payable over time				1,142,857
Earnout Shares [Member]
Business Acquisition [Line Items]
Business acquisition, shares unrestricted or delivered			57,287

- Definition

Fair value, as of the acquisition date, of potential payments under the contingent consideration arrangement including cash and shares.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141
-Paragraph 51
-Subparagraph f
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141R
-Paragraph 68
-Subparagraph g(1)
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141R
-Paragraph 29, 30, 41, 42, 64
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141R
-Paragraph 65
-Subparagraph a, b
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 30
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=6910544&loc=d3e4237-128469

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 25
-Paragraph 27
-URI http://asc.fasb.org/extlink&oid=6946367&loc=d3e3629-128468

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 35
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6910684&loc=d3e4570-128470

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 25
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6911189&loc=d3e6405-128476

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (b)(3),(c)(1)
-URI http://asc.fasb.org/extlink&oid=6911361&loc=d3e6927-128479

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 30
-Paragraph 19
-URI http://asc.fasb.org/extlink&oid=6910544&loc=d3e4243-128469

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 25
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=6911189&loc=d3e6411-128476

Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 25
-Paragraph 28
-URI http://asc.fasb.org/extlink&oid=6946367&loc=d3e3642-128468

Reference 13: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 40
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6910732&loc=d3e4805-128471

Reference 14: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 25
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=6911189&loc=d3e6408-128476

+ Details

Employee Benefit Plans (Narrative) (Details) $ in Thousands, £ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2012 GBP (£)	Dec. 31, 2011 GBP (£)	Dec. 31, 2011 USD ($)	Dec. 31, 2010 USD ($)	Mar. 31, 2012 USD ($)	Jul. 31, 2009 GBP (£)
Defined Benefit Plan Disclosure [Line Items]
Contribution to settle obligation related to the cumulative underperformance of plan assets \| $				$ 8,600
Contribution each year from 2012 through 2020	£ 1.0
Escrow deposit						£ 12.5
Pension contributions		£ 2.3	$ 3,687
Amend and extend existing escrow	10.2
Payments From 2014 Through 2020 [Member]
Defined Benefit Plan Disclosure [Line Items]
Additional contribution to plan assets from escrow account	£ 1.0
U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Employer contribution in current fiscal year \| $					$ 700

Condensed Consolidated Statements Of Changes In Stockholders' Equity - USD ($)
$ in Thousands

Series A Preferred Stock [Member]

Common Stock [Member]

Additional Paid-In-Capital [Member]

Retained Earnings [Member]

Accumulated Other Comprehensive Income (Loss), Net of Tax [Member]

Class A Common Stock Held By A Subsidiary [Member]

Total Lazard Ltd Stockholders' Equity [Member]

Noncontrolling Interests [Member]

Total

Beginning balance (in shares) at Dec. 31, 2010

22,021

119,697,937

^[1]

6,847,508

Balance at Dec. 31, 2010

$ 1,197

$ 758,841

$ 166,468

$ (46,158)

$ (227,950)

$ 652,398

$ 143,719

$ 796,117

Comprehensive income (loss):

Net income

55,007

4,976

59,983

OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX:

Currency translation adjustments

22,297

1,441

23,738

Amortization of interest rate hedge

248

264

Employee benefit plans:

Net actuarial loss

(3,464)

(221)

(3,685)

Adjustments for items reclassified to earnings

515

548

Comprehensive income

74,603

6,245

80,848

Business acquisitions and related equity transactions:

Class A common stock issued/issuable (including related amortization)

2,416

154

2,570

Amortization of share-based incentive compensation

87,948

5,609

93,557

Dividend-equivalents

2,680

(2,694)

(14)

(1)

(15)

Class A common stock dividends

(14,115)

Purchase of Class A common stock (in shares)

766,814

Purchase of Class A common stock

$ (32,689)

(32,689)

Delivery of Class A common stock in connection with share-based incentive compensation and related tax expense

(245,984)

$ 162,968

(83,016)

Delivery of Class A common stock in connection with share-based incentive compensation and related tax expense, shares

(4,889,175)

Repurchase of common membership interests from LAZ-MD Holdings

(746)

(48)

(794)

Distributions to noncontrolling interests, net

(2,002)

6,946

(5)

6,941

(6,941)

Ending balance (in shares) at Mar. 31, 2011

22,021

119,697,937

^[1]

2,725,147

Balance at Mar. 31, 2011

$ 1,197

612,101

204,666

(26,567)

$ (97,671)

693,726

146,735

840,461

Beginning balance (in shares) at Dec. 31, 2011

7,921

123,009,312

^[2]

3,492,017

Balance at Dec. 31, 2011

$ 1,230

659,013

258,646

(88,364)

$ (104,382)

726,143

140,713

866,856

Comprehensive income (loss):

Net income

25,552

3,504

29,056

OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX:

Currency translation adjustments

17,953

1,176

19,129

Amortization of interest rate hedge

250

264

Employee benefit plans:

Net actuarial loss

(2,463)

(134)

(2,597)

Adjustments for items reclassified to earnings

773

815

Comprehensive income

42,065

4,602

46,667

Business acquisitions and related equity transactions:

Amortization of share-based incentive compensation

81,708

4,428

86,136

Dividend-equivalents

2,912

(2,934)

(22)

(1)

(23)

Class A common stock dividends

(19,164)

Purchase of Class A common stock (in shares)

2,378,445

Purchase of Class A common stock

$ (70,540)

(70,540)

Delivery of Class A common stock in connection with share-based incentive compensation and related tax expense

(108,807)

$ 82,960

(25,847)

(50)

(25,897)

Delivery of Class A common stock in connection with share-based incentive compensation and related tax expense, shares

(2,602,570)

Class A stock issued in exchange for common membership interests, shares

^[2]

85,196

Class A stock issued in exchange for common membership interests

$ 1

(1)

Distributions to noncontrolling interests, net

(23,257)

4,043

(52)

3,991

(3,991)

Ending balance (in shares) at Mar. 31, 2012

7,921

123,094,508

^[2]

3,267,892

Balance at Mar. 31, 2012

$ 1,231

$ 638,868

$ 262,100

$ (71,903)

$ (91,962)

$ 738,334

$ 122,444

$ 860,778

[1]	Includes 119,697,936 shares of the Company's Class A common stock issued at January 1, 2011 and March 31, 2011 and 1 share of the Company's Class B common stock issued at each such date.
[2]	Includes 123,009,311 and 123,094,507 shares of the Company's Class A common stock issued at January 1, 2012 and March 31, 2012, respectively, and 1 share of the Company's Class B common stock issued at each such date.

Incentive Plans (Summary Of The Impact Of All Incentive Plans On Compensation And Benefits Expense ) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total	$ 86,136	$ 93,557
DSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based incentive compensation	70	56
RSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based incentive compensation	81,891	84,858
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based incentive compensation	$ 4,175	$ 8,643

Related Parties (Schedule Of Amounts Receivable From And Payable To Related Parties) (Details) - USD ($) $ in Thousands	Mar. 31, 2012	Dec. 31, 2011
Amounts receivables from related parties	$ 15,232	$ 18,501
Amounts payables to related parties	10,988	6,075
LFCM Holdings [Member]
Amounts receivables from related parties	11,393	14,790
Amounts payables to related parties	10,043	4,850
Other [Member]
Amounts receivables from related parties	3,839	3,711
Amounts payables to related parties	$ 945	$ 1,225

- Definition

For an unclassified balance sheet, amounts due from related parties including affiliates, employees, joint ventures, officers and stockholders, immediate families thereof, and pension funds.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 4
-Section 08
-Paragraph k
-Subparagraph 1

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 57
-Paragraph 2
-Subparagraph d
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 7
-Section 03
-Paragraph 3

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Interpretation (FIN)
-Number 46R
-Paragraph 16, 17
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(k)(1))
-URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.3)
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.10(3))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

+ Details

- Definition

Carrying amount as of the balance sheet date of obligations due all related parties.

+ References + Details

Fair Value Measurements (Fair Value Of Certain Investments Based On NAV) (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2012	Dec. 31, 2011
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value	$ 219,072	$ 185,970
Unfunded Commitments	35,883	52,197
Equities [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value	$ 52,211	$ 40,512
% of Fair Value Not Redeemable	2.00%	2.00%
Estimated Liquidation Period of Investments Not Redeemable, % Next 5 Years	1.00%	1.00%
Estimated Liquidation Period of Investments Not Redeemable, % 5-10 Years	0.00%	0.00%
Estimated Liquidation Period of Investments Not Redeemable, % Thereafter	1.00%	1.00%
Investments Redeemable, Redemption Frequency	Quarterly	Quarterly
Investments Redeemable, Redemption Notice Period	60 Days	60 Days
Interests In Alternative Asset Management Funds [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value	$ 37,851	$ 20,600
% of Fair Value Not Redeemable	0.00%	0.00%
Estimated Liquidation Period of Investments Not Redeemable, % Next 5 Years	0.00%	0.00%
Estimated Liquidation Period of Investments Not Redeemable, % 5-10 Years	0.00%	0.00%
Estimated Liquidation Period of Investments Not Redeemable, % Thereafter	0.00%	0.00%
Investments Redeemable, Redemption Frequency	Quarterly	Quarterly
Investments Redeemable, Redemption Notice Period	>90 Days	>90 Days
Fixed Income Funds [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value	$ 13,810	$ 3,582
% of Fair Value Not Redeemable	0.00%	0.00%
Estimated Liquidation Period of Investments Not Redeemable, % Next 5 Years	0.00%	0.00%
Estimated Liquidation Period of Investments Not Redeemable, % 5-10 Years	0.00%	0.00%
Estimated Liquidation Period of Investments Not Redeemable, % Thereafter	0.00%	0.00%
Investments Redeemable, Redemption Frequency	Monthly	Monthly
Investments Redeemable, Redemption Notice Period	60 Days	60 Days
Private Equity [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value	$ 115,200	$ 121,276
Unfunded Commitments	$ 35,883	$ 52,197
% of Fair Value Not Redeemable	100.00%	100.00%
Estimated Liquidation Period of Investments Not Redeemable, % Next 5 Years	26.00%	33.00%
Estimated Liquidation Period of Investments Not Redeemable, % 5-10 Years	34.00%	28.00%
Estimated Liquidation Period of Investments Not Redeemable, % Thereafter	40.00%	39.00%
Investments Redeemable, Redemption Frequency	NA	NA
Investments Redeemable, Redemption Notice Period	NA	NA

Derivatives

3 Months Ended

Mar. 31, 2012

Derivatives [Abstract]

Derivatives

6.	*DERIVATIVES*

The Company enters into forward foreign currency exchange rate contracts, interest rate swaps, interest rate futures, equity and fixed income swaps and other derivative contracts to hedge exposures to fluctuations in currency exchange rates, interest rates and equity and debt markets. The Company reports its derivative instruments separately as assets and liabilities unless a legal right of set-off exists under a master netting agreement enforceable by law. The Company's derivative instruments are recorded at their fair value, and are included in "other assets" and "other liabilities" on the consolidated statements of financial condition. Gains and losses on the Company's derivative instruments not designated as hedging instruments, as well as gains and losses on derivative instruments accounted for as fair value hedges, are included in "interest income" and "interest expense", respectively, or "revenue-other", depending on the nature of the underlying item, on the consolidated statements of operations. Furthermore, with respect to derivative instruments designated as fair value hedges, the hedged item is required to be adjusted for changes in fair value of the risk being hedged, with such adjustment accounted for in the consolidated statements of operations.

In addition to the derivative instruments described above, the Company records derivative liabilities relating to its obligations pertaining to Lazard Fund Interests awards and other similar deferred compensation arrangements, the fair value of which is based on the value of the underlying investments, adjusted for estimated forfeitures, and is included in "accrued compensation and benefits" in the consolidated statements of financial condition. Changes in the fair value of the derivative liabilities are included in "compensation and benefits" in the consolidated statements of operations, the impact of which equally offsets the changes in the fair value of the underlying investments owned, which is reported in "revenue-other" in the consolidated statements of operations.

The table below represents the fair values of the Company's derivative instruments reported within "other assets" and "other liabilities" and the fair value of the Company's derivative liabilities relating to its obligations pertaining to Lazard Fund Interests and other similar deferred compensation arrangements reported within "accrued compensation and benefits" (see Note 12 of Notes to Condensed Consolidated Financial Statements) on the accompanying condensed consolidated statements of financial condition as of March 31, 2012 and December 31, 2011:


	March 31,		December 31,
	2012		2011
Derivative Assets:
Forward foreign currency exchange rate contracts	$	1,403	$	4,245
Equity and fixed income swaps and other		51		2,886

	$	1,454	$	7,131


Derivative Liabilities:
Forward foreign currency exchange rate contracts	$	1,478	$	445
Interest rate swaps		274		277
Equity and fixed income swaps		4,054		91
Lazard Fund Interests and other similar deferred compensation arrangements (see Note 12)		90,286		29,900

	$	96,092	$	30,713

Net gains (losses) with respect to derivative instruments not designated as hedging instruments (predominantly reflected in "revenue-other") and the Company's derivative liabilities relating to its obligations pertaining to Lazard Fund Interests and other similar deferred compensation arrangements (reported in "compensation and benefits" expense, which equally offsets corresponding amounts reported in "revenue-other" as described above) as reflected on the accompanying condensed consolidated statements of operations for the three month periods ended March 31, 2012 and 2011, by type of derivative, were as follows:


	Three Months Ended March 31,
	2012			2011
Forward foreign currency exchange rate contracts	$	(1,922	)	$	(6,258	)
Equity and fixed income swaps and other		(10,255	)		(2,289	)
Lazard Fund Interests and other similar deferred compensation arrangements		(2,767	)		–

	$	(14,944	)	$	(8,547	)

- Definition

The entire disclosure for the entity's entire derivative instruments and hedging activities. Describes an entity's risk management strategies, derivatives in hedging activities and non-hedging derivative instruments, the assets, obligations, liabilities, revenues and expenses arising therefrom, and the amounts of and methodologies and assumptions used in determining the amounts of such items.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
-Paragraph 45
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
-Paragraph 44
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 30
-Section 50
-Paragraph 2
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-Topic 815
-SubTopic 30
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-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6441202&loc=d3e80720-113993

+ Details

Stockholders' Equity (Schedule Of Net Income (Loss) Attributable To Noncontrolling Interests) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011	Dec. 31, 2011
Net Income (Loss) Attributable to Noncontrolling Interests	$ 3,504	$ 4,976
Noncontrolling interests	122,444		$ 140,713
LAZ-MD Holdings [Member]
Net Income (Loss) Attributable to Noncontrolling Interests	1,325	3,734
Noncontrolling interests	33,612		31,954
Edgewater [Member]
Net Income (Loss) Attributable to Noncontrolling Interests	2,174	1,023
Noncontrolling interests	87,069		91,713
Other [Member]
Net Income (Loss) Attributable to Noncontrolling Interests	5	$ 219
Noncontrolling interests	$ 1,763		$ 17,046

- Definition

Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest).

+ References + Details

- Definition

The portion of net Income or Loss attributable to the noncontrolling interest (if any) deducted in order to derive the portion attributable to the parent.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 38
-Subparagraph a
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph A1, A4, A5
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-Name Accounting Standards Codification
-Topic 810
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-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
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-Subparagraph c(1)
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Goodwill And Other Intangible Assets (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011	Dec. 31, 2011	Dec. 31, 2010
Goodwill [Line Items]
Goodwill	$ 360,638	$ 316,101	$ 356,657	$ 313,229
Amortization expense of intangible assets	1,118	$ 1,474
Financial Advisory Segment [Member]
Goodwill [Line Items]
Goodwill	296,097		292,116
Asset Management Segment [Member]
Goodwill [Line Items]
Goodwill	$ 64,541		$ 64,541

- Definition

Carrying amount as of the balance sheet date, which is the cumulative amount paid and (if applicable) the fair value of any noncontrolling interest in the acquiree, adjusted for any amortization recognized prior to the adoption of any changes in generally accepted accounting principles (as applicable) and for any impairment charges, in excess of the fair value of net assets acquired in one or more business combination transactions.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 142
-Paragraph 45
-Subparagraph e
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-Number 142
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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-Name Statement of Financial Accounting Standard (FAS)
-Number 141R
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Reference 4: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-Number 141R
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Reference 8: http://www.xbrl.org/2003/role/presentationRef
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+ Details

Incentive Plans (Schedule Of Activity Relating To RSUs And DSUs) (Details) - $ / shares	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
DSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares/Units, Beginning Balance	140,660	121,737
Shares/Units, Granted	2,522	1,249
Shares/Units, Forfeited
Shares/Units, Closing Balance	143,182	122,986
Weighted Average Grant Date Fair Value, Beginning Balance	$ 34.83	$ 34.46
Weighted Average Grant Date Fair Value, Granted	27.89	45.55
Weighted Average Grant Date Fair Value, Forfeited
Weighted Average Grant Date Fair Value, Ending Balance	$ 34.71	$ 34.57
RSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares/Units, Beginning Balance	20,751,829	22,108,635
Shares/Units, Granted	7,147,059	6,038,286
Shares/Units, Forfeited	(76,264)	(122,774)
Shares/Units, Vested	3,270,375	(6,678,444)
Shares/Units, Closing Balance	24,552,249	21,345,703
Weighted Average Grant Date Fair Value, Beginning Balance	$ 36.84	$ 35.67
Weighted Average Grant Date Fair Value, Granted	27.73	45.12
Weighted Average Grant Date Fair Value, Forfeited	33.14	38.24
Weighted Average Grant Date Fair Value, Vested	34.28	39.45
Weighted Average Grant Date Fair Value, Ending Balance	$ 34.54	$ 37.15
Dividend participation rights	101,597	60,223

Net Income Per Share Of Class A Common Stock

3 Months Ended

Mar. 31, 2012

Net Income Per Share Of Class A Common Stock [Abstract]

Net Income Per Share Of Class A Common Stock

15.

NET INCOME PER SHARE OF CLASS A COMMON STOCK

The Company's basic and diluted net income per share calculations for the three month periods ended March 31, 2012 and 2011 are computed as described below.

Basic Net Income Per Share

Numerator—utilizes net income attributable to Lazard Ltd for the respective years, plus applicable adjustments to such net income associated with the inclusion of shares of Class A common stock issuable on a non-contingent basis.

Denominator—utilizes the weighted average number of shares of Class A common stock outstanding for the respective years, plus applicable adjustments to such shares associated with shares of Class A common stock issuable on a non-contingent basis.

Diluted Net Income Per Share

Numerator—utilizes net income attributable to Lazard Ltd for the respective years as in the basic net income per share calculation described above, plus, to the extent applicable and dilutive, (i) interest expense on convertible debt, (ii) changes in net income attributable to noncontrolling interests resulting from assumed Class A common stock issuances in connection with share-based incentive compensation, convertible debt and convertible preferred stock and, on an "as-if-exchanged" basis, amounts applicable to LAZ-MD Holdings exchangeable interests and (iii) income tax related to (i) and (ii) above.

Denominator—utilizes the weighted average number of shares of Class A common stock outstanding for the respective years as in the basic net income per share calculation described above, plus, to the extent dilutive, the incremental number of shares of Class A common stock to settle share-based incentive compensation, convertible debt, convertible preferred stock and LAZ-MD Holdings exchangeable interests, using the "treasury stock" method, the "if converted" method or the "as-if-exchanged" basis, as applicable.

The calculations of the Company's basic and diluted net income per share and weighted average shares outstanding for the three month periods ended March 31, 2012 and 2011 are presented below:


	Three Months Ended March 31,
	2012		2011
Net income attributable to Lazard Ltd		$25,552		$55,007
Add (deduct) - adjustment associated with Class A common stock issuable on a non-contingent basis		–		97

Net income attributable to Lazard Ltd - basic		25,552		55,104
Add - dilutive effect, as applicable, of:
Adjustments to income relating to interest expense and changes in net income attributable to noncontrolling interests resulting from assumed Class A common stock issuances in connection with share-based incentive compensation, convertible debt in 2011, convertible preferred stock and exchangeable interests, net of tax		1,190		4,424

Net income attributable to Lazard Ltd - diluted		$ 26,742		$59,528


Weighted average number of shares of Class A common stock outstanding		118,679,859		111,681,448
Add - adjustment for shares of Class A common stock issuable on a non-contingent basis		549,682		3,653,306

Weighted average number of shares of Class A common stock outstanding - basic		119,229,541		115,334,754
Add - dilutive effect, as applicable, of:
Weighted average number of incremental shares of Class A common stock issuable from share-based incentive compensation, convertible debt in 2011, convertible preferred stock and exchangeable interests		17,364,637		23,255,839

Weighted average number of shares of Class A common stock outstanding - diluted		136,594,178		138,590,593

Net income attributable to Lazard Ltd per share of Class A common stock:
Basic		$0.21		$0.48

Diluted		$0.20		$0.43

Investments (Gross Unrealized Investment Gains And Losses Pertaining To "Trading" Securities) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Investments [Abstract]
Gross unrealized investment gains	$ 1,045	$ 573
Gross unrealized investment losses		$ 120

- Definition

The increase (decrease) resulting in a gain from the difference between the fair value and the carrying value, or in the comparative fair values, of trading securities held at each balance sheet date, that was included in earnings for the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 115
-Paragraph 13
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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-Name Statement of Financial Accounting Standard (FAS)
-Number 115
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Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.7(c))
-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688

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-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6956420&loc=d3e24584-111560

+ Details

- Definition

The increase (decrease) resulting in a loss from the difference between the fair value and the carrying value, or in the comparative fair values, of trading securities held at each balance sheet date, that was included in earnings for the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 115
-Paragraph 13
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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-Number 115
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-Topic 225
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Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Trading Securities
-URI http://asc.fasb.org/extlink&oid=6526789

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+ Details

Incentive Plans (Narrative) (Details) $ in Thousands	3 Months Ended
Incentive Plans (Narrative) (Details) $ in Thousands	Mar. 31, 2012 USD ($) yr shares	Mar. 31, 2011 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Amortization of prepaid compensation asset, weighted average recognition period, years \| yr	2.40
RSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Company satisfied employees' tax obligations in lieu of issuing vested stock	802,810	1,947,471
Unrecognized compensation expense for Restricted Stock \| $	$ 360,000
Unrecognized compensation expense, years \| yr	1.6
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Delivery of common stock associated with stock awards	93,891	158,202
Unrecognized compensation expense for Restricted Stock \| $	$ 12,000
Unrecognized compensation expense, years \| yr	2.10
Class A Common Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized pertaining to share based compensation arrangements, 2005 Plan	25,000,000
Class A Common Stock [Member] \| RSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Delivery of common stock associated with stock awards	2,467,565	4,730,973
Class A Common Stock [Member] \| Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Company satisfied employees' withholding taxes in lieu delivering, shares	25,661	25,220
Non-Executive Members [Member] \| DSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of annual compensation received by directors in the form of DSUs	55.00%
Portion of annual compensation elected to be paid in DSUs in lieu of cash	2,522	1,249
Awarded Under 2008 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of outstanding Class A common stock	30.00%

Income Taxes

3 Months Ended

Mar. 31, 2012

Income Taxes [Abstract]

Income Taxes

14.

INCOME TAXES

As a result of its indirect investment in Lazard Group, Lazard Ltd, through certain of its subsidiaries, is subject to U.S. federal income taxes on its portion of Lazard Group's operating income. Although a portion of Lazard Group's income is subject to U.S. federal income taxes, Lazard Group primarily operates in the U.S. as a limited liability company that is treated as a partnership for U.S. federal income tax purposes. As a result, Lazard Group's income from its U.S. operations is generally not subject to U.S. federal income taxes because such income is attributable to its partners. In addition, Lazard Group is subject to New York City Unincorporated Business Tax ("UBT") which is attributable to Lazard Group's operations apportioned to New York City. UBT is incremental to the U.S. federal statutory tax rate. Outside the U.S., Lazard Group operates principally through subsidiary corporations that are subject to local income taxes.

The Company recorded income tax provisions of $8,767 and $13,463 for the three month periods ended March 31, 2012 and 2011, respectively, representing effective tax rates of 23.2% and 18.3%, respectively. The difference between the U.S. federal statutory rate of 35.0% and the effective tax rates reflected above principally relates to (i) Lazard Group primarily operating as a limited liability company in the U.S., (ii) foreign source income (loss) not subject to U.S. income taxes, (iii) Lazard Group's income from U.S. operations attributable to noncontrolling interests and (iv) U.S. state and local taxes (primarily UBT), which are incremental to the U.S. federal statutory tax rate.

Substantially all of Lazard's foreign operations are conducted in "pass-through" entities for U.S. income tax purposes and the Company provides for U.S. income taxes on a current basis for substantially all of those earnings. The repatriation of prior earnings attributable to "non-pass-through" entities would not result in the recognition of a material amount of additional U.S. income taxes.

Tax Receivable Agreement

The redemption of historical partner interests in connection with the Company's separation and recapitalization that occurred in May 2005 and subsequent exchanges of LAZ-MD Holdings exchangeable interests for shares of Class A common stock have resulted, and future exchanges of LAZ-MD Holdings exchangeable interests for shares of Class A common stock may result, in increases in the tax basis of the tangible and/or intangible assets of Lazard Group. The tax receivable agreement dated as of May 10, 2005 with LFCM Holdings LLC ("LFCM Holdings") requires the Company to pay LFCM Holdings 85% of the cash savings, if any, in U.S. federal, state and local income tax or franchise tax that the Company actually realizes as a result of the above-mentioned increases in tax basis. The Company calculates this provision annually and includes such amounts in operating expenses on its consolidated statements of operations once the results of operations for the full year are known. As a result, there is no provision for such payments in the three month periods ended March 31, 2012 and 2011. If any provision is required pursuant to the tax receivable agreement, such amount would be fully offset by a reduction in the Company's income tax expense.

- Definition

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 08
-Paragraph h
-Article 4

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 109
-Paragraph 136, 172
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 109
-Paragraph 43, 44, 45, 46, 47, 48, 49
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 9
-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(h))
-URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32559-109319

+ Details

Derivatives (Fair Value Of Derivatives Reported On Consolidated Statements Of Financial Condition) (Details) - USD ($) $ in Thousands	Mar. 31, 2012	Dec. 31, 2011
Derivative [Line Items]
Derivative Assets	$ 1,454	$ 7,131
Derivative Liabilities	96,092	30,713
Forward Foreign Currency Exchange Rate Contracts [Member]
Derivative [Line Items]
Derivative Assets	1,403	4,245
Derivative Liabilities	1,478	445
Interest Rate Swaps [Member]
Derivative [Line Items]
Derivative Liabilities	274	277
Equity And Fixed Income Swaps [Member]
Derivative [Line Items]
Derivative Liabilities	4,054	91
Equity And Fixed Income Swaps And Other [Member]
Derivative [Line Items]
Derivative Assets	51	2,886
Lazard Fund Interests And Other Similar Deferred Compensation Arrangements [Member]
Derivative [Line Items]
Derivative Liabilities	$ 90,286	$ 29,900

- Definition

Fair values as of the balance sheet date of all assets resulting from contracts that meet the criteria of being accounted for as derivative instruments, net of the effects of master netting arrangements.

+ References + Details

- Definition

Fair values as of the balance sheet date of all liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments, net of the effects of master netting arrangements.

+ References + Details

Goodwill And Other Intangible Assets (Schedule Of Changes In Carrying Amount Of Goodwill) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Goodwill And Other Intangible Assets [Abstract]
Balance, January 1	$ 356,657	$ 313,229
Foreign currency translation adjustments	3,981	2,872
Balance, March 31	$ 360,638	$ 316,101

The increase (decrease) in the recorded value of goodwill for foreign currency translation adjustments and purchase accounting adjustments needed to revise the carrying amount of goodwill to fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 142
-Subparagraph e
-Paragraph 45
-Clause 6
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=6905597&loc=d3e13816-109267

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141R
-Paragraph 72
-Subparagraph d
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 142
-Subparagraph e
-Paragraph 45
-Clause 3
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 142
-Subparagraph e
-Paragraph 45
-Clause 7
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Goodwill And Other Intangible Assets (Schedule Of Gross Cost And Accumulated Amortization) (Details) - USD ($) $ in Thousands	Mar. 31, 2012	Dec. 31, 2011
Intangible Assets [Line Items]
Other intangible assets, Gross Cost	$ 63,364	$ 63,364
Other intangible assets, Accumulated Amortization	28,040	26,922
Other intangible assets, Net Carrying Amount	35,324	36,442
Success/Performance Fees [Member]
Intangible Assets [Line Items]
Other intangible assets, Gross Cost	30,740	30,740
Other intangible assets, Accumulated Amortization	7,122	7,122
Other intangible assets, Net Carrying Amount	23,618	23,618
Management Fees, Customer Relationships And Non-Compete Agreements [Member]
Intangible Assets [Line Items]
Other intangible assets, Gross Cost	32,624	32,624
Other intangible assets, Accumulated Amortization	20,918	19,800
Other intangible assets, Net Carrying Amount	$ 11,706	$ 12,824

Fair Value Measurements (Categorization Of Investments And Certain Other Assets And Liabilities Measured At Fair Value On Recurring Basis) (Details) - USD ($)
$ in Thousands

Mar. 31, 2012

Dec. 31, 2011

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Investments

^[1]

$ 170,438

$ 156,053

Derivatives

1,454

7,131

Total Assets

365,448

371,765

Securities sold, not yet purchased

1,952

4,282

Derivatives

96,092

30,713

Total Liabilities

98,044

34,995

Level 1 [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Total Assets

138,904

160,030

Securities sold, not yet purchased

1,952

4,282

Total Liabilities

1,952

4,282

Level 2 [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Derivatives

1,454

7,131

Total Assets

103,849

78,635

Derivatives

96,092

30,713

Total Liabilities

96,092

30,713

Level 3 [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Total Assets

122,695

133,100

Debt [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Investments

6,191

34,132

Debt [Member] | Level 1 [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Investments

1,609

17,111

Debt [Member] | Level 2 [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Investments

4,582

17,021

Equities [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Investments

170,438

156,053

Equities [Member] | Level 1 [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Investments

118,154

115,380

Equities [Member] | Level 2 [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Investments

52,057

37,332

Equities [Member] | Level 3 [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Investments

227

3,341

Other (Excluding Equity Method Investments) [Member] | Interests In Alternative Asset Management Funds [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Investments

37,851

20,610

Other (Excluding Equity Method Investments) [Member] | Interests In Alternative Asset Management Funds [Member] | Level 2 [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Investments

31,946

13,569

Other (Excluding Equity Method Investments) [Member] | Interests In Alternative Asset Management Funds [Member] | Level 3 [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Investments

5,905

7,041

Other (Excluding Equity Method Investments) [Member] | Private Equity [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Investments

116,563

122,718

Other (Excluding Equity Method Investments) [Member] | Private Equity [Member] | Level 3 [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Investments

116,563

122,718

Fixed Income Funds [Member] | Other (Excluding Equity Method Investments) [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Investments

32,951

31,121

Fixed Income Funds [Member] | Other (Excluding Equity Method Investments) [Member] | Level 1 [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Investments

19,141

27,539

Fixed Income Funds [Member] | Other (Excluding Equity Method Investments) [Member] | Level 2 [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Investments

$ 13,810

$ 3,582

[1]

Equities, interests in alternative asset management funds and fixed income funds include investments with fair values of $22,224, $3,619 and $5,056, respectively, at March 31, 2012 and $19,857, $2,256 and $5,212, respectively, at December 31, 2011, held in order to satisfy the Company's liability upon vesting of previously granted Lazard Fund Interests ("Lazard Fund Interests") and other similar deferred compensation arrangements. Lazard Fund Interests represent grants by the Company to eligible employees of actual or notional interests in a number of Lazard-managed funds (see Notes 6 and 12 of Notes to Condensed Consolidated Financial Statements).

Stockholders' Equity (Schedule Of Group Distributions) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Amounts distributed by Lazard Group	$ 20,245	$ 15,070
LAZ-MD Holdings [Member]
Amounts distributed by Lazard Group	1,081	955
Subsidiaries Of Lazard Ltd [Member]
Amounts distributed by Lazard Group	$ 19,164	$ 14,115

Incentive Plans (Summary Of The Impact Of Fund Interests And Other Similar Deferred Compensation Arrangements) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Incentive Plans [Abstract]
Amortization (including grants of awards to retirement-eligible recipients)	$ 6,185	$ 2,641
Change in fair value of compensation liability	2,767
Total	$ 8,952	$ 2,641

Senior Debt

3 Months Ended

Mar. 31, 2012

Senior Debt [Abstract]

Senior Debt

9.	*SENIOR DEBT*

Senior debt is comprised of the following as of March 31, 2012 and December 31, 2011:


								Outstanding As Of
	Initial Principal Amount		Maturity Date		Annual Interest Rate			March 31,		December 31,
	Initial Principal Amount		Maturity Date		Annual Interest Rate			2012		2011
Lazard Group 7.125% Senior Notes	$	550,000		5/15/15		7.125	%	$	528,500	$	528,500
Lazard Group 6.85% Senior Notes		600,000		6/15/17		6.85	%		548,350		548,350
Lazard Group Credit Facility		150,000		4/29/13		1.90	%		–		–

Total								$	1,076,850	$	1,076,850

Lazard Group has in place a $150,000, three-year senior revolving credit facility with a group of lenders (the "Credit Facility"), which expires in April 2013. Interest rates under the Credit Facility vary and are based on either a Federal Funds rate or a Eurodollar rate, in each case plus an applicable margin. As of March 31, 2012, the annual interest rate for a loan accruing interest (based on the Federal Funds overnight rate), including the applicable margin, was 1.90%. At March 31, 2012 and December 31, 2011, no amounts were outstanding under the Credit Facility.

The Credit Facility, as amended, contains customary terms and conditions, including certain financial covenants. In addition, the Credit Facility, as well as the indenture and the supplemental indentures relating to Lazard Group's senior notes, contain certain covenants, events of default and other customary provisions, including, where applicable, a customary make-whole provision in the event of early redemption. As of March 31, 2012, the Company was in compliance with all of these provisions. All of the Company's senior debt obligations are unsecured.

As of March 31, 2012, the Company had approximately $315,000 in unused lines of credit available to it, including the Credit Facility, and unused lines of credit available to LFB of approximately $93,000 (at March 31, 2012 exchange rates) and Edgewater of $65,000. In addition, LFB has access to the Eurosystem Covered Bond Purchase Program of the Banque de France.

The Company's senior debt at March 31, 2012 and December 31, 2011 is recorded at historical amounts. At those dates, the fair value of such senior debt outstanding was approximately $1,174,000 and $1,138,000, respectively, and exceeded the aggregate carrying value by approximately $97,000 and $61,000, respectively. The fair value of the Company's senior debt was estimated using a discounted cash flow analysis based on the Company's current borrowing rates for similar types of borrowing arrangements or based on market quotations, where available. The Company's senior debt would be categorized within Level 2 of the hierarchy of fair value measurements if carried at fair value.

- Definition

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

+ References + Details

Fair Value Measurements (Summary Of Changes In Fair Value Of The Company's Level 3 Assets) (Details) - USD ($)
$ in Thousands

3 Months Ended

Mar. 31, 2012

Mar. 31, 2011

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Beginning Balance

$ 133,100

$ 163,798

Net Unrealized/Realized Gains (Losses) Included In Revenue-Other

^[1]

7,691

279

Purchases/Acquisitions

2,706

12,153

Sales/Dispositions

(22,265)

(7,303)

Foreign Currency Translation Adjustments

1,463

2,689

Ending Balance

122,695

171,616

Equities [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Beginning Balance

3,341

316

Purchases/Acquisitions

Sales/Dispositions

(3,130)

(195)

Foreign Currency Translation Adjustments

Ending Balance

227

129

Interests In Alternative Asset Management Funds [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Beginning Balance

7,041

Net Unrealized/Realized Gains (Losses) Included In Revenue-Other

^[1]

127

Sales/Dispositions

(1,263)

Ending Balance

5,905

Private Equity [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Beginning Balance

122,718

163,482

Net Unrealized/Realized Gains (Losses) Included In Revenue-Other

^[1]

7,564

279

Purchases/Acquisitions

2,696

12,153

Sales/Dispositions

(17,872)

(7,108)

Foreign Currency Translation Adjustments

1,457

2,681

Ending Balance

$ 116,563

$ 171,487

[1]	Earnings for the three month periods ended March 31, 2012 and 2011 include net unrealized gains of $6,080 and $279, respectively, pertaining to investments outstanding at the end of each respective period.

Investments

3 Months Ended

Mar. 31, 2012

Investments [Abstract]

Investments

4.	*INVESTMENTS*

The Company's investments and securities sold, not yet purchased, consist of the following at March 31, 2012 and December 31, 2011:


	March 31,		December 31,
	2012		2011
Debt	$	9,149	$	36,966

Equities (a)		170,438		156,053

Other:
Interests in alternative asset management funds (a)		37,851		20,610
Fixed income funds (a)		32,951		31,121
Private equity		116,563		122,718
Equity method investments		11,321		11,053

		198,686		185,502

Total investments		378,273		378,521
Less:
Interest-bearing deposits (included in "debt" above)		2,958		2,834
Equity method investments		11,321		11,053

Investments, at fair value	$	363,994	$	364,634

Securities sold, not yet purchased, at fair value (included in "other liabilities")	$	1,952	$	4,282

(a)

Debt securities included in the table above are categorized as "trading" securities. Debt securities primarily relate to Asset Management seed investments and U.S. government debt securities and, at December 31, 2011, non-U.S. government securities which matured during the first quarter of 2012.

Equities primarily relate to the Company's seed investments in Asset Management products, which in turn invest in marketable equity securities of large-, mid- and small-cap domestic, international and global companies and include investments in public and private asset management funds managed both by LAM and third-party asset managers.

Interests in alternative asset management funds represent general partner ("GP") interests in various Lazard-managed alternative asset management funds.

Fixed income funds primarily consist of amounts seeding products of our Asset Management business.

Private equity investments include those owned by Lazard and those consolidated but not owned by Lazard. Private equity investments owned by Lazard are primarily comprised of investments in private equity funds and direct private equity interests. Such investments primarily include (i) a mezzanine fund, which invests in mezzanine debt of a diversified selection of small- to mid-cap European companies, (ii) Corporate Partners II Limited ("CP II"), a private equity fund targeting significant noncontrolling-stake investments in established public and private companies, (iii) Lazard Senior Housing Partners LP ("Senior Housing"), which targets controlling interests in companies and assets in the senior housing, extended-stay hotel and shopping center sectors, (iv) Edgewater Growth Capital Partners III, L.P. ("EGCP III"), a private equity fund primarily making equity and buyout investments in lower middle market companies and (v) Lazard Australia Corporate Opportunities Fund 2 ("COF 2"), a Lazard-managed Australian private equity fund.

Private equity investments consolidated but not owned by Lazard relate to the economic interests that are owned by the leadership team and other investors in the Edgewater Funds ("Edgewater") which aggregated $22,059 and $18,502 at March 31, 2012 and December 31, 2011, respectively.

During the three month periods ended March 31, 2012 and 2011, the Company recognized gross investment gains and losses in "revenue-other" on its condensed consolidated statements of operations as follows:


	Three Months Ended March 31,
	2012		2011
Gross investment gains	$	27,644	$	6,375
Gross investment losses	$	984	$	1,016


The table above includes gross unrealized investment gains and losses pertaining to "trading" securities as follows:
	Three Months Ended March 31,
	2012		2011
Gross unrealized investment gains	$	1,045	$	573
Gross unrealized investment losses	$	–	$	120

Segment Information (Schedule Of Segment's Contribution With Respect To Net Revenue, Operating Income (Loss) And Total Assets) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011	Dec. 31, 2011
Segment Reporting Information [Line Items]
Net Revenue	$ 486,039	$ 438,023
Operating Expenses	448,216	364,577
Operating Income (Loss)	37,823	73,446
Total Assets	2,907,998		$ 3,081,936
Financial Advisory [Member]
Segment Reporting Information [Line Items]
Net Revenue	277,196	228,845
Operating Expenses	249,897	213,566
Operating Income (Loss)	27,299	15,279
Total Assets	797,733		767,699
Asset Management [Member]
Segment Reporting Information [Line Items]
Net Revenue	214,527	226,853
Operating Expenses	160,501	149,204
Operating Income (Loss)	54,026	77,649
Total Assets	534,558		583,524
Corporate [Member]
Segment Reporting Information [Line Items]
Net Revenue	(5,684)	(17,675)
Operating Expenses	37,818	1,807
Operating Income (Loss)	(43,502)	$ (19,482)
Total Assets	$ 1,575,707		$ 1,730,713

Incentive Plans

3 Months Ended

Mar. 31, 2012

Incentive Plans [Abstract]

Incentive Plans

12.

INCENTIVE PLANS

Share-Based Incentive Plan Awards

A description of Lazard Ltd's 2005 Plan and 2008 Plan and activity with respect thereto during the three month periods ended March 31, 2012 and 2011 is presented below.

Shares Available Under the 2005 Plan and 2008 Plan

The 2005 Plan authorizes the issuance of up to 25,000,000 shares of Class A common stock pursuant to the grant or exercise of stock options, stock appreciation rights, restricted stock, stock units and other equity-based awards. Each stock unit granted under the 2005 Plan represents a contingent right to receive one share of Class A common stock, at no cost to the recipient. The fair value of such stock unit awards is generally determined based on the closing market price of Class A common stock on the day prior to the date of grant.

In addition to the shares available under the 2005 Plan, additional shares of Class A common stock are available under the 2008 Plan. The maximum number of shares available under the 2008 Plan is based on a formula that limits the aggregate number of shares that may, at any time, be subject to awards that are considered "outstanding" under the 2008 Plan to 30% of the then-outstanding shares of Class A common stock (treating, for this purpose, the then-outstanding exchangeable interests of LAZ-MD Holdings on a "fully-exchanged" basis as described in the 2008 Plan).

The following is a summary of the impact of share-based incentive plans on "compensation and benefits" expense within the Company's condensed consolidated statements of operations:


	Three Months Ended March 31,
	2012		2011
Share-based incentive compensation:
RSUs	$	81,891	$	84,858
Deferred stock units ("DSUs")		70		56
Restricted stock		4,175		8,643

Total	$	86,136	$	93,557

The Company's incentive plans are described below.

Restricted and Deferred Stock Units

RSUs generally require future service as a condition for the delivery of the underlying shares of Class A common stock (unless the recipient is then eligible for retirement under the Company's retirement policy) and convert into Class A common stock on a one-for-one basis after the stipulated vesting periods. The grant date fair value of the RSUs, net of an estimated forfeiture rate, is amortized over the vesting periods or requisite service periods, and, for purposes of calculating diluted net income per share, RSUs are included in the diluted weighted average shares of Class A common stock outstanding using the "treasury stock" method.

RSUs issued subsequent to December 31, 2005 generally include a dividend participation right that provides that during vesting periods each RSU is attributed additional RSUs (or fractions thereof) equivalent to any ordinary quarterly dividends paid on Class A common stock during such period. During the three month periods ended March 31, 2012 and 2011, issuances of RSUs pertaining to such dividend participation rights and respective charges to "retained earnings", net of estimated forfeitures (with corresponding credits to "additional paid-in-capital") consisted of the following:


	Three Months Ended March 31,
	2012		2011
Number of RSUs issued		101,597		60,223
Charges to retained earnings, net of estimated forfeitures	$	2,912	$	2,409

Non-executive members of the Board of Directors receive approximately 55% of their annual compensation for service on the Board of Directors and its committees in the form of DSUs. Their remaining compensation is payable in cash, which they may elect to receive in the form of additional DSUs under the Directors' Fee Deferral Unit Plan described below. DSUs are convertible into Class A common stock at the time of cessation of service to the Board, and, for purposes of calculating diluted net income per share, are included in the diluted weighted average shares of Class A common stock outstanding using the "treasury stock" method. DSUs include a cash dividend participation right equivalent to any ordinary quarterly dividends paid on Class A common stock, and resulted in nominal cash payments for the three month periods ended March 31, 2012 and 2011.

On May 9, 2006, the Board of Directors adopted the Directors' Fee Deferral Unit Plan, which allows the Company's non-executive directors to elect to receive additional DSUs pursuant to the 2005 Plan in lieu of some or all of their cash fees. The number of DSUs that shall be granted to a non-executive director pursuant to this election will equal the value of cash fees that the applicable non-executive director has elected to forego pursuant to such election, divided by the market value of a share of Class A common stock on the date on which the foregone cash fees would otherwise have been paid. During the three month periods ended March 31, 2012 and 2011, 2,522 and 1,249 DSUs, respectively, had been granted pursuant to such plan.

DSU awards are expensed at their fair value on their date of grant, inclusive of amounts related to the Directors' Fee Deferral Unit Plan.

The following is a summary of activity relating to RSUs and DSUs during the three month periods ended March 31, 2012 and 2011:


	RSUs					DSUs
	Units			Weighted Average Grant Date Fair Value		Units		Weighted Average Grant Date Fair Value
Balance, January 1, 2012		20,751,829		$	36.84		140,660	$	34.83
Granted (including 101,597 RSUs relating to dividend participation)		7,147,059		$	27.73		2,522	$	27.89
Forfeited		(76,264	)	$	33.14		–		–
Vested		(3,270,375	)	$	34.28		–		–

Balance, March 31, 2012		24,552,249		$	34.54		143,182	$	34.71


Balance, January 1, 2011		22,108,635		$	35.67		121,737	$	34.46
Granted (including 60,223 RSUs relating to dividend participation)		6,038,286		$	45.12		1,249	$	45.55
Forfeited		(122,774	)	$	38.24		–		–
Vested		(6,678,444	)	$	39.45		–		–

Balance, March 31, 2011		21,345,703		$	37.15		122,986	$	34.57

In connection with RSUs which vested during the three month periods ended March 31, 2012 and 2011, the Company satisfied certain employees' tax obligations in lieu of issuing 802,810 and 1,947,471 shares of Class A common stock in the respective three month periods. Accordingly, 2,467,565 and 4,730,973 shares of Class A common stock held by Lazard Group were delivered during the three month periods ended March 31, 2012 and 2011, respectively.

As of March 31, 2012, unrecognized RSU compensation expense, adjusted for estimated forfeitures, was approximately $360,000, with such unrecognized compensation expense expected to be recognized over a weighted average period of approximately 1.6 years subsequent to March 31, 2012. The ultimate amount of such expense is dependent upon the actual number of RSUs that vest. The Company periodically assesses the forfeiture rates used for such estimates. A change in estimated forfeiture rates would cause the aggregate amount of compensation expense recognized in future periods to differ from the estimated unrecognized compensation expense described herein.

Restricted Stock

The following is a summary of activity related to shares of restricted Class A common stock associated with compensation arrangements during the three month periods ended March 31, 2012 and 2011:


	Restricted Shares			Weighted Average Grant Date Fair Value
Balance, January 1, 2012		95,332		$	37.63
Granted/Exchanged		577,323		$	29.25
Vested/Converted		(119,552	)	$	28.54

Balance, March 31, 2012		553,103		$	30.85


Balance, January 1, 2011		95,332		$	37.63
Granted		183,422		$	45.26
Vested		(183,422	)	$	45.26

Balance, March 31, 2011		95,332		$	37.63

The Company satisfied certain employees' tax obligations in lieu of delivering 25,661 and 25,220 shares of Class A common stock in connection with shares of restricted Class A common stock that vested during the three month periods ended March 31, 2012 and 2011, respectively. Accordingly, 93,891 and 158,202 shares of Class A common stock held by the Company were delivered during the respective three month periods.

The awards include a cash dividend participation right equivalent to any ordinary quarterly dividends paid on Class A common stock during the period, which will vest concurrently with the underlying restricted stock award. At March 31, 2012, unrecognized restricted stock expense was approximately $12,000, with such expense to be recognized over a weighted average period of approximately 2.1 years subsequent to March 31, 2012.

For purposes of calculating diluted net income per share, such awards are included in the diluted weighted average shares of Class A common stock outstanding using the "treasury stock" method.

Lazard Fund Interests

As previously described, commencing in February 2011, the Company granted to eligible employees Lazard Fund Interests. In connection with the Lazard Fund Interests and other similar deferred compensation arrangements, which generally require future service as a condition for vesting, the Company recorded a prepaid compensation asset and a corresponding compensation liability on the grant date based upon the fair value of the award. The prepaid asset is amortized on a straight-line basis over the applicable vesting periods or requisite service periods, and is charged to "compensation and benefits" expense within the Company's consolidated statement of operations. Lazard Fund Interests and similar deferred compensation arrangements that do not require future service are expensed immediately. The related compensation liability is accounted for at fair value as a derivative liability, and is adjusted for changes in fair value primarily related to the changes in the fair value of the underlying investments. Such changes in the fair value of the derivative liability are recorded to "compensation and benefits" expense within the Company's consolidated statements of operations, the impact of which equally offsets the changes in fair value of the underlying investments owned, which is reported in "revenue-other" in the consolidated statement of operations (see Note 6 of Notes to Condensed Consolidated Financial Statements).

The following is a summary of activity relating to Lazard Fund Interests and other similar deferred compensation arrangements during the three month period ended March 31, 2012:


	Prepaid Compensation Asset			Derivative Liability
Balance January 1, 2012	$	17,782		$	29,900
Granted		64,598			64,598
Settled		–			(6,922	)
Amortization (including grants of awards to retirement-eligible recipients)		(6,185	)		–
Increase in fair value		–			2,767
Foreign currency translation and other adjustments		162			(57	)

Balance, March 31, 2012	$	76,357		$	90,286

The amortization of the prepaid compensation asset will generally be recognized over a weighted average period of approximately 2.4 years subsequent to March 31, 2012.

The following is a summary of the impact of Lazard Fund Interests and other similar deferred compensation arrangements on "compensation and benefits" expense within the accompanying condensed consolidated statements of operations for the three month periods ended March 31, 2012 and 2011:


	Three Months Ended March 31,
	2012		2011
Compensation expense:
Amortization (including grants of awards to retirement-eligible recipients)	$	6,185	$	2,641
Change in fair value of compensation liability		2,767		–

Total	$	8,952	$	2,641

Fair Value Measurements

3 Months Ended

Mar. 31, 2012

Fair Value Measurements [Abstract]

Fair Value Measurements

5.	*FAIR VALUE MEASUREMENTS*

Lazard categorizes its investments and certain other assets and liabilities recorded at fair value into a three-level fair value hierarchy as follows:

Level 1.

Assets and liabilities whose values are based on unadjusted quoted prices for identical assets or liabilities in an active market that Lazard has the ability to access.

Level 2.

Assets and liabilities whose values are based on quoted prices for similar assets or liabilities in an active market, quoted prices for identical or similar assets or liabilities in non-active markets or assets valued based on NAV or its equivalent redeemable at the measurement date or within the near term without redemption restrictions, or inputs other than quoted prices that are directly observable or derived principally from, or corroborated by, market data.

Level 3.

Assets and liabilities whose values are based on prices or valuation techniques that require inputs that are both unobservable and significant to the overall fair value measurement. These inputs reflect our own assumptions about the assumptions a market participant would use in pricing the asset or liability. Items included in Level 3 include securities or other financial assets whose volume and level of activity have significantly decreased when compared with normal market activity and there is no longer sufficient frequency or volume to provide pricing information on an ongoing basis as well as assets valued based on NAV not redeemable within the near term.

The Company's investments in U.S. Government and agency debt securities as well as in non-U.S. Government and other debt securities are considered Level 1 assets when their respective fair values are based on unadjusted quoted prices in active markets and are considered Level 2 assets when their fair values are primarily based on broker quotes as provided by external pricing services.

The fair value of equities is principally classified as Level 1, Level 2 or Level 3 as follows: marketable equity securities are classified as Level 1 and are valued based on the last trade price on the primary exchange for that security; public asset management funds are classified as Level 1 and are valued based on the reported closing price for the fund; investments in private asset management funds are classified as Level 2 and are primarily valued based on information provided by fund managers and, secondarily, from external pricing services to the extent managed by LAM; and Level 3 represents equities valued based on NAV and are not redeemable within the near term.

The fair value of interests in alternative asset management funds is classified as either Level 2 or Level 3 depending on the time frame of any applicable redemption restriction, and is based on information provided by external pricing services.

The Company's investments in fixed income funds are considered Level 1 assets when the fair values are based on the reported closing price for the fund or Level 2 assets when the fair values are primarily based on broker quotes as provided by external pricing services.

The fair value of private equity investments is classified as Level 3, and is primarily based on NAV. Such investments are not redeemable within the near term.

The fair values of derivatives entered into by the Company are classified as Level 2 and are based on the values of the related underlying assets, indices or reference rates as follows - the fair value of forward foreign currency exchange rate contracts is a function of the spot rate and the interest rate differential of the currency from the trade date to settlement date; the fair value of equity and fixed income swaps is based on the change in fair values of the related underlying equity security, financial instrument or index and a specified notional holding; and the fair values of interest rate swaps are based on the interest rate yield curve.

Where information reported is based on broker quotes, the Company generally obtains one quote/price per instrument. In some cases, quotes related to corporate bonds obtained through external pricing services represent the average of several broker quotes. Where information reported is based on data received from fund managers or from external pricing services, the Company reviews such information to ascertain at which level within the fair value hierarchy to classify the investment.

The following tables present the categorization of investments and certain other assets and liabilities measured at fair value on a recurring basis as of March 31, 2012 and December 31, 2011 into the three-level fair value hierarchy in accordance with fair value measurement disclosure requirements:


	March 31, 2012
	Level 1		Level 2		Level 3		Total
Assets:
Investments:
Debt (excluding interest-bearing deposits)	$	1,609	$	4,582	$	–	$	6,191
Equities		118,154		52,057		227		170,438
Other (excluding equity method investments):
Interest in alternative asset management funds		–		31,946		5,905		37,851
Fixed income funds		19,141		13,810		–		32,951
Private equity		–		–		116,563		116,563
Derivatives		–		1,454		–		1,454

Total Assets	$	138,904	$	103,849	$	122,695	$	365,448

Liabilities:
Securities sold, not yet purchased	$	1,952	$	–	$	–	$	1,952
Derivatives		–		96,092		–		96,092

Total Liabilities	$	1,952	$	96,092	$	–	$	98,044


	December 31, 2011
	Level 1		Level 2		Level 3		Total
Assets:
Investments:
Debt (excluding interest-bearing deposits)	$	17,111	$	17,021	$	–	$	34,132
Equities		115,380		37,332		3,341		156,053
Other (excluding equity method investments):
Interest in alternative asset management funds		–		13,569		7,041		20,610
Fixed income funds		27,539		3,582		–		31,121
Private equity		–		–		122,718		122,718
Derivatives		–		7,131		–		7,131

Total Assets	$	160,030	$	78,635	$	133,100	$	371,765

Liabilities:
Securities sold, not yet purchased	$	4,282	$	–	$	–	$	4,282
Derivatives		–		30,713		–		30,713

Total Liabilities	$	4,282	$	30,713	$	–	$	34,995

There were no transfers between any of the Level 1, 2 and 3 categories in the fair value measurement hierarchy during the three month periods ended March 31, 2012 and 2011.

The following tables provide a summary of changes in fair value of the Company's Level 3 assets for the three month periods ended March 31, 2012 and 2011:


	Three Months Ended March 31, 2012
	Beginning Balance		Net Unrealized/ Realized Gains (Losses) Included In Revenue-Other (a)		Purchases/ Acquisitions		Sales/ Dispositions			Foreign Currency Translation Adjustments		Ending Balance
	Beginning Balance				Purchases/ Acquisitions		Sales/ Dispositions			Foreign Currency Translation Adjustments		Ending Balance
Investments:
Equities	$	3,341	$	–	$	10	$	(3,130	)	$	6	$	227
Interest in alternative asset management funds		7,041		127		–		(1,263	)		–		5,905
Private equity		122,718		7,564		2,696		(17,872	)		1,457		116,563

Total Level 3 Assets	$	133,100	$	7,691	$	2,706	$	(22,265	)	$	1,463	$	122,695


	Three Months Ended March 31, 2011
	Beginning Balance		Net Unrealized/ Realized Gains (Losses) Included In Revenue-Other (a)		Purchases/ Acquisitions		Sales/ Dispositions			Foreign Currency Translation Adjustments		Ending Balance
	Beginning Balance				Purchases/ Acquisitions		Sales/ Dispositions			Foreign Currency Translation Adjustments		Ending Balance
Investments:
Equities	$	316	$	–	$	–	$	(195	)	$	8	$	129
Private equity		163,482		279		12,153		(7,108	)		2,681		171,487

Total Level 3 Assets	$	163,798	$	279	$	12,153	$	(7,303	)	$	2,689	$	171,616

(a) Earnings for the three month periods ended March 31, 2012 and 2011 include net unrealized gains of $6,080 and $279, respectively, pertaining to investments outstanding at the end of each respective period.

Fair Value of Certain Investments Based on NAV—The Company's Level 2 and Level 3 investments at March 31, 2012 and December 31, 2011 include certain investments that are valued using an NAV as a practical expedient in determining fair value. Information with respect thereto was as follows:


	March 31, 2012
								Estimated Liquidation Period of Investments Not Redeemable									Investments Redeemable
	Fair Value		Unfunded Commitments		% of Fair Value Not Redeemable			% Next 5 Years			% 5-10 Years			% Thereafter			Redemption Frequency	Redemption Notice Period
Equity funds	$	52,211	$	–		2	%		1	%		0	%		1	%	Quarterly	60 Days
Interests in alternative asset management funds		37,851		–		0	%		0	%		0	%		0	%	Quarterly	>90 Days
Fixed income funds		13,810		–		0	%		0	%		0	%		0	%	Monthly	60 Days
Private equity funds		115,200		35,883		100	%		26	%		34	%		40	%	NA	NA

Total	$	219,072	$	35,883


	December 31, 2011
								Estimated Liquidation Period of Investments Not Redeemable									Investments Redeemable
	Fair Value		Unfunded Commitments		% of Fair Value Not Redeemable			% Next 5 Years			% 5-10 Years			% Thereafter			Redemption Frequency	Redemption Notice Period
Equity funds	$	40,512	$	–		2	%		1	%		0	%		1	%	Quarterly	60 Days
Interests in alternative asset management funds		20,600		–		0	%		0	%		0	%		0	%	Quarterly	>90 Days
Fixed income funds		3,582		–		0	%		0	%		0	%		0	%	Monthly	60 Days
Private equity funds		121,276		52,197		100	%		33	%		28	%		39	%	NA	NA

Total	$	185,970	$	52,197

Investment Capital Funding Commitments—At March 31, 2012, the current maximum unfunded commitments by the Company for capital contributions to investment funds related to (i) CP II, amounting to $2,124 for potential "follow-on investments" and/or for fund expenses through the earlier of February 25, 2017 or the liquidation of the fund, (ii) EGCP III, amounting to $25,673 through the earlier of October 12, 2016 (i.e., the end of the investment period) for investments and/or expenses (with a portion of the undrawn amount of such commitment as of that date remaining committed until October 12, 2023 in respect of "follow-on investments" and/or fund expenses) or the liquidation of the fund and (iii) COF 2, amounting to $8,086, through the earlier of November 11, 2016 (i.e., the end of the investment period) for investments and/or fund expenses (with a portion of the undrawn amount of such commitment as of that date remaining committed until November 11, 2019 in respect of "follow-on investments" and/or fund expenses) or the liquidation of the fund.

The commitment regarding EGCP III described above reflects a March 1, 2012 reduction of approximately $17,400 from the original commitment of $50,000 that an investor group agreed to acquire from the Company.

- Definition

Tabular disclosure of the fair value measurement of assets and liabilities which includes [financial] instruments measured at fair value that are classified in stockholders' equity. Such assets and liabilities may be measured on a recurring or nonrecurring basis. The disclosures which may be required or desired include: (1) for assets and liabilities measured on a recurring basis, disclosure may include: (a) the fair value measurements at the reporting date; (b) the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets or liabilities (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3); (c) for fair value measurements using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes during the period attributable to the following: (i) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets), and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (ii) purchases, sales, issuances, and settlements (net); (iii) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs); (d) the amount of the total gains or losses for the period in subparagraph (c) (i) above included in earnings (or changes in net assets) that are attributable to the change in unrealized gains or losses relating to those assets and liabilities still held at the reporting date and a description of where those unrealized gains or losses are reported in the statement of income (or activities); (e) the valuation technique(s) used to measure fair value and a discussion of changes in valuation techniques, if any, during the period and (2) for assets and liabilities that are measured at fair value on a nonrecurring basis (for example, impaired assets) disclosure may include, in addition to (a) above: (a) the reasons for the fair value measurements recorded; (b) the same as (b) above; (c) for fair value measurements using significant unobservable inputs (Level 3), a description of the inputs and the information used to develop the inputs; and (d) the valuation technique(s) used to measure fair value and a discussion of changes, if any, in the valuation technique(s) used to measure similar assets and/or liabilities in prior periods. Where the quoted price in an active market for the identical liability is not available, the Level 1 input is the quoted price of an identical liability when traded as an asset.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 107
-Paragraph 10
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 157
-Paragraph 32
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 157
-Paragraph 33
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 157
-Paragraph 6
-Footnote 4
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6925170&loc=d3e19207-110258

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6925170&loc=d3e19190-110258

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6925170&loc=d3e19279-110258

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6925170&loc=d3e19296-110258

+ Details

Net Income Per Share Of Class A Common Stock (Schedule Of Company's Basic And Diluted Net Income (Loss) Per Share And Weighted Average Shares Outstanding) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Net income (loss) attributable to Lazard Ltd	$ 25,552	$ 55,007
Net income (loss) attributable to Lazard Ltd - basic	25,552	55,104
Net income attributable to Lazard Ltd - diluted	$ 26,742	$ 59,528
Weighted average number of shares of Class A common stock outstanding - basic	119,229,541	115,334,754
Weighted average number of shares of Class A common stock outstanding - diluted	136,594,178	138,590,593
Net income attributable to Lazard Ltd per share of Class A common stock - Basic	$ 0.21	$ 0.48
Net income attributable to Lazard Ltd per share of Class A common stock - Diluted	$ 0.20	$ 0.43
Class A Common Stock [Member]
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Add (deduct) - adjustment associated with Class A common stock issuable on a non-contingent basis		$ 97
Add - dilutive effect, as applicable of - Adjustments to income relating to interest expense and changes in net income (loss) attributable to noncontrolling interests resulting from assumed Class A common stock issuances in connection with share-based incentive compensation, convertible debt, convertible preferred stock and exchangeable interests, net of tax	$ 1,190	$ 4,424
Weighted average number of shares of Class A common stock outstanding	118,679,859	111,681,448
Add - adjustment for shares of Class A common stock issuable on a non-contingent basis	549,682	3,653,306
Weighted average number of shares of Class A common stock outstanding - basic	119,229,541	115,334,754
Add - dilutive effect, as applicable of - Weighted average number of incremental shares of Class A common stock issuable from share-based incentive compensation, convertible debt, convertible preferred stock and exchangeable interests	17,364,637	23,255,839
Weighted average number of shares of Class A common stock outstanding - diluted	136,594,178	138,590,593
Net income attributable to Lazard Ltd per share of Class A common stock - Basic	$ 0.21	$ 0.48
Net income attributable to Lazard Ltd per share of Class A common stock - Diluted	$ 0.20	$ 0.43

Goodwill And Other Intangible Assets (Schedule Of Components Of Goodwill And Other Intangible Assets) (Details) - USD ($) $ in Thousands	Mar. 31, 2012	Dec. 31, 2011	Mar. 31, 2011	Dec. 31, 2010
Goodwill And Other Intangible Assets [Abstract]
Goodwill	$ 360,638	$ 356,657	$ 316,101	$ 313,229
Other intangible assets (net of accumulated amortization)	35,324	36,442
Goodwill and other intangible assets, Total	$ 395,962	$ 393,099

- Definition

+ References

+ Details

Organization And Basis Of Presentation (Details)	3 Months Ended
Organization And Basis Of Presentation (Details)	Mar. 31, 2012 $ / shares shares	Dec. 31, 2011 $ / shares shares
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Number of business segments	2
Lazard Ltd [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Common membership interests held	94.90%	94.80%
LAZ-MD Holdings LLC [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Common membership interests held	5.10%	5.20%
Class A Common Stock [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Common stock, par value \| $ / shares	$ 0.01	$ 0.01
Common stock, shares issued	123,094,507	123,009,311
Class B Common Stock [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Common stock, par value \| $ / shares	$ 0.01	$ 0.01
Common stock, shares outstanding	1	1
Common stock, shares issued	1	1
Class B Common Stock [Member] \| LAZ-MD Holdings LLC [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Common membership voting power held	5.10%	5.20%
Common stock, shares outstanding	1
Common stock, shares issued	1

Incentive Plans (Tables)

3 Months Ended

Mar. 31, 2012

Incentive Plans [Abstract]

Summary Of The Impact Of All Incentive Plans On Compensation And Benefits Expense


	Three Months Ended March 31,
	2012		2011
Share-based incentive compensation:
RSUs	$	81,891	$	84,858
Deferred stock units ("DSUs")		70		56
Restricted stock		4,175		8,643

Total	$	86,136	$	93,557

Schedule Of Issuance Of RSUs And Charges To Retained Earnings


	Three Months Ended March 31,
	2012		2011
Number of RSUs issued		101,597		60,223
Charges to retained earnings, net of estimated forfeitures	$	2,912	$	2,409

Schedule Of Activity Relating To RSUs And DSUs


	RSUs					DSUs
	Units			Weighted Average Grant Date Fair Value		Units		Weighted Average Grant Date Fair Value
Balance, January 1, 2012		20,751,829		$	36.84		140,660	$	34.83
Granted (including 101,597 RSUs relating to dividend participation)		7,147,059		$	27.73		2,522	$	27.89
Forfeited		(76,264	)	$	33.14		–		–
Vested		(3,270,375	)	$	34.28		–		–

Balance, March 31, 2012		24,552,249		$	34.54		143,182	$	34.71


Balance, January 1, 2011		22,108,635		$	35.67		121,737	$	34.46
Granted (including 60,223 RSUs relating to dividend participation)		6,038,286		$	45.12		1,249	$	45.55
Forfeited		(122,774	)	$	38.24		–		–
Vested		(6,678,444	)	$	39.45		–		–

Balance, March 31, 2011		21,345,703		$	37.15		122,986	$	34.57

Summary Of Activity Related To Shares Of Restricted Class A Common Stock


	Restricted Shares			Weighted Average Grant Date Fair Value
Balance, January 1, 2012		95,332		$	37.63
Granted/Exchanged		577,323		$	29.25
Vested/Converted		(119,552	)	$	28.54

Balance, March 31, 2012		553,103		$	30.85


Balance, January 1, 2011		95,332		$	37.63
Granted		183,422		$	45.26
Vested		(183,422	)	$	45.26

Balance, March 31, 2011		95,332		$	37.63

Summary Of Fund Interests And Other Similar Deferred Compensation Arrangements


	Prepaid Compensation Asset			Derivative Liability
Balance January 1, 2012	$	17,782		$	29,900
Granted		64,598			64,598
Settled		–			(6,922	)
Amortization (including grants of awards to retirement-eligible recipients)		(6,185	)		–
Increase in fair value		–			2,767
Foreign currency translation and other adjustments		162			(57	)

Balance, March 31, 2012	$	76,357		$	90,286

Summary Of The Impact Of Fund Interests And Other Similar Deferred Compensation Arrangements


	Three Months Ended March 31,
	2012		2011
Compensation expense:
Amortization (including grants of awards to retirement-eligible recipients)	$	6,185	$	2,641
Change in fair value of compensation liability		2,767		–

Total	$	8,952	$	2,641

Investments (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Investments (Narrative) (Details) - USD ($) $ in Thousands	Mar. 31, 2012	Dec. 31, 2011
Edgewater [Member]
Schedule of Investments [Line Items]
Private equity investments consolidated, but owned by noncontrolling interests	$ 22,059	$ 18,502

Document And Entity Information - shares	3 Months Ended
Document And Entity Information - shares	Mar. 31, 2012	Apr. 24, 2012
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2012
Document Fiscal Year Focus	2012
Document Fiscal Period Focus	Q1
Trading Symbol	laz
Entity Registrant Name	Lazard Ltd
Entity Central Index Key	0001311370
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Class A Common Stock [Member]
Entity Common Stock, Shares Outstanding		123,094,507
Class B Common Stock [Member]
Entity Common Stock, Shares Outstanding		1

Goodwill And Other Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2012

Goodwill And Other Intangible Assets [Abstract]

Schedule Of Components Of Goodwill And Other Intangible Assets


	March 31,		December 31,
	2012		2011
Goodwill	$	360,638	$	356,657
Other intangible assets (net of accumulated amortization)		35,324		36,442

	$	395,962	$	393,099

Schedule Of Changes In Carrying Amount Of Goodwill


	Three Months Ended March 31,
	2012		2011
Balance, January 1	$	356,657	$	313,229
Foreign currency translation adjustments		3,981		2,872

Balance, March 31	$	360,638	$	316,101

Schedule Of Gross Cost And Accumulated Amortization


	March 31, 2012						December 31, 2011
	Gross Cost		Accumulated Amortization		Net Carrying Amount		Gross Cost		Accumulated Amortization		Net Carrying Amount
Success/performance fees	$	30,740	$	7,122	$	23,618	$	30,740	$	7,122	$	23,618
Management fees, customer relationships and non-compete agreements		32,624		20,918		11,706		32,624		19,800		12,824

	$	63,364	$	28,040	$	35,324	$	63,364	$	26,922	$	36,442

Schedule Of Estimated Future Amortization Expense


Year Ending December 31,	Future Amortization Expense (a)
2012 (April 1 through December 31)	$	4,280
2013		10,338
2014		8,332
2015		6,735
2016		5,639

Total amortization expense	$	35,324

(a)

Approximately 46% of intangible asset amortization is attributable to a noncontrolling interest.

- Definition

Tabular disclosure of goodwill by reportable segment and in total. Disclosure details may include, but are not limited to, the carrying amount of goodwill, goodwill acquired during the year, goodwill impairment losses recognized, goodwill written-off due to the sale of a business unit, goodwill not yet allocated, and any other changes to goodwill.

+ References + Details

Stockholders' Equity

3 Months Ended

Mar. 31, 2012

Stockholders' Equity [Abstract]

Stockholders' Equity

11.

STOCKHOLDERS' EQUITY

Lazard Group Distributions—As previously described, Lazard Group's common membership interests are held by subsidiaries of Lazard Ltd and by LAZ-MD Holdings. Pursuant to provisions of the Operating Agreement, Lazard Group distributions in respect of its common membership interests are allocated to the holders of such interests on a pro rata basis. Such distributions represent amounts necessary to fund (i) any dividends Lazard Ltd may declare on its Class A common stock and (ii) tax distributions in respect of income taxes that Lazard Ltd's subsidiaries and the members of LAZ-MD Holdings incur as a result of holding Lazard Group common membership interests.

During the three month periods ended March 31, 2012 and 2011, Lazard Group distributed the following amounts to LAZ-MD Holdings and the subsidiaries of Lazard Ltd (none of which related to tax distributions):


	Three Months Ended March 31,
	2012		2011
LAZ-MD Holdings	$	1,081	$	955
Subsidiaries of Lazard Ltd		19,164		14,115

	$	20,245	$	15,070

Pursuant to the Operating Agreement, Lazard Group allocates and distributes to its members a substantial portion of its distributable profits in installments, as soon as practicable after the end of each fiscal year. Such installment distributions usually begin in February.

Exchange of Lazard Group Common Membership Interests— During the three month period ended March 31, 2012, Lazard Ltd issued 85,196 shares of Class A common stock in connection with the exchange of a like number of Lazard Group common membership interests (received from members of LAZ-MD Holdings in exchange for a like number of LAZ-MD Holdings exchangeable interests). No such exchanges occurred in the three month period ended March 31, 2011.

See "Noncontrolling Interests" below for additional information regarding Lazard Ltd's and LAZ-MD Holdings' ownership interests in Lazard Group.

Share Repurchase Program—In February 2011 and October 2011, the Board of Directors of Lazard Ltd authorized, on a cumulative basis, the repurchase of up to $250,000 and $125,000, respectively, in aggregate cost of Class A common stock and Lazard Group common membership interests through December 31, 2012 and December 31, 2013, respectively. The Company's prior share repurchase authorizations expired on December 31, 2009 and December 31, 2011. The Company expects that the share repurchase program, with respect to the Class A common stock, will continue to be used primarily to offset a portion of the shares that have been or will be issued under the Lazard Ltd 2005 Equity Incentive Plan (the "2005 Plan") and the Lazard Ltd 2008 Incentive Compensation Plan (the "2008 Plan"). Pursuant to such authorizations, purchases have been made in the open market or through privately negotiated transactions. During the three month period ended March 31, 2012, the Company made purchases of 2,378,445 Class A common shares, at an aggregate cost of $70,540 (no Lazard Group common membership interests were purchased during such three month period).

As of March 31, 2012, $141,603 of the current aggregate $375,000 share repurchase amount authorized as of such date remained available under the share repurchase program as follows – $16,603 of the $250,000 share repurchase amount expiring December 31, 2012, and all of the $125,000 share repurchase amount expiring December 31, 2013. In addition, under the terms of the 2005 Plan and the 2008 Plan, upon the vesting of restricted stock units ("RSUs"), shares of Class A common stock may be withheld by the Company to cover the recipient's estimated income tax liability (see Note 12 of Notes to Condensed Consolidated Financial Statements). On April 24, 2012, the Board of Directors of Lazard Ltd authorized the repurchase of up to an additional $125,000 in aggregate cost of Lazard Ltd Class A common stock and Lazard Group common membership interests through December 31, 2013.

During the first quarter of 2012, the Company had a written trading plan under Rule 10b5-1 of the Securities Exchange Act of 1934 in place, pursuant to which it effected stock repurchases through the open market.

Preferred Stock—Lazard Ltd has 15,000,000 authorized shares of preferred stock, par value $0.01 per share, inclusive of its Series A preferred stock and Series B preferred stock. The Series A and Series B preferred shares are each non-participating securities that are or were each convertible into Class A common stock, and have no voting or dividend rights. As of both March 31, 2012 and December 31, 2011, 7,921 shares of Series A preferred stock were outstanding, and no shares of Series B preferred stock were outstanding at such respective dates.

Accumulated Other Comprehensive Income (Loss), Net of Tax ("AOCI")—The components of AOCI at March 31, 2012 and December 31, 2011 are as follows:


	March 31,			December 31,
	2012			2011
Currency translation adjustments	$	22,848		$	3,719
Interest rate hedge		(3,293	)		(3,557	)
Employee benefit plans		(94,419	)		(92,637	)

Total AOCI		(74,864	)		(92,475	)
Less amount attributable to noncontrolling interests		(2,961	)		(4,111	)

Total Lazard Ltd AOCI	$	(71,903	)	$	(88,364	)

Noncontrolling Interests—Noncontrolling interests principally represent interests held in (i) Lazard Group by LAZ-MD Holdings and (ii) Edgewater's management vehicles that the Company is deemed to control, but does not own.

As of March 31, 2012 and December 31, 2011, LAZ-MD Holdings held approximately 5.1% and 5.2%, respectively, of the outstanding Lazard Group common membership interests. Subject to certain limitations, LAZ-MD Holdings' interests in Lazard Group are exchangeable for Class A common stock.

The following tables summarize the changes in ownership interests in Lazard Group held by Lazard Ltd and LAZ-MD Holdings during the three month periods ended March 31, 2012, and 2011:


	Lazard Ltd					LAZ-MD Holdings						Total Lazard Group Common Membership Interests
	Common Membership Interests		% Ownership			Common Membership Interests			% Ownership			Total Lazard Group Common Membership Interests
Balance, January 1, 2011		119,697,936		94.0	%		7,652,625			6.0	%		127,350,561
Activity January 1, 2011 to March 31, 2011:
Common membership interest activity in connection with:
Repurchase of common membership interests from LAZ-MD Holdings		–					(19,032	)					(19,032	)

Balance, March 31, 2011		119,697,936		94.0	%		7,633,593			6.0	%		127,331,529


Balance, January 1, 2012		123,009,311		94.8	%		6,756,779			5.2	%		129,766,090
Activity January 1, 2012 to March 31, 2012:
Common membership interest activity in connection with:
Exchanges for Class A common stock		85,196					(85,196	)					–

Balance, March 31, 2012		123,094,507		94.9	%		6,671,583			5.1	%		129,766,090

The change in Lazard Ltd's ownership in Lazard Group in the three month periods ended March 31, 2012 and 2011 did not materially impact Lazard Ltd's stockholders' equity.

The tables below summarize net income attributable to noncontrolling interests for the three month periods ended March 31, 2012 and 2011 and noncontrolling interests as of March 31, 2012 and December 31, 2011 in the Company's condensed consolidated financial statements:


	Net Income Attributable to Noncontrolling Interests Three Months Ended March 31,
	2012		2011
LAZ-MD Holdings	$	1,325	$	3,734
Edgewater		2,174		1,023
Other		5		219

Total	$	3,504	$	4,976


	Noncontrolling Interests As Of
	March 31, 2012		December 31, 2011
LAZ-MD Holdings	$	33,612	$	31,954
Edgewater		87,069		91,713
Other		1,763		17,046

Total	$	122,444	$	140,713

Dividend Declared, April, 2012—On April 24, 2012, the Board of Directors of Lazard Ltd declared a quarterly dividend of $0.20 per share on its Class A common stock, totaling $24,619, payable on May 25, 2012, to stockholders of record on May 4, 2012.

- Definition

The entire disclosure for shareholders' equity, comprised of portions attributable to the parent entity and noncontrolling interest, if any, including other comprehensive income (as applicable). Including, but not limited to: (1) balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings; (2) accumulated balance for each classification of other comprehensive income and total amount of comprehensive income; (3) amount and nature of changes in separate accounts, including the number of shares authorized and outstanding, number of shares issued upon exercise and conversion, and for other comprehensive income, the adjustments for reclassifications to net income; (4) rights and privileges of each class of stock authorized; (5) basis of treasury stock, if other than cost, and amounts paid and accounting treatment for treasury stock purchased significantly in excess of market; (6) dividends paid or payable per share and in the aggregate for each class of stock for each period presented; (7) dividend restrictions and accumulated preferred dividends in arrears (in aggregate and per share amount); (8) retained earnings appropriations or restrictions, such as dividend restrictions; (9) impact of change in accounting principle, initial adoption of new accounting principle and correction of an error in previously issued financial statements; (10) shares held in trust for Employee Stock Ownership Plan (ESOP); (11) deferred compensation related to issuance of capital stock; (12) note received for issuance of stock; (13) unamortized discount on shares; (14) description, terms, and number of warrants or rights outstanding; (15) shares under subscription and subscription receivables, effective date of new retained earnings after quasi-reorganization and deficit eliminated by quasi-reorganization and, for a period of at least ten years after the effective date, the point in time from which the new retained dates; and (16) retroactive effective of subsequent change in capital structure.

+ References

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Reference 4: http://www.xbrl.org/2003/role/presentationRef
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-Number 43
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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
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Reference 6: http://www.xbrl.org/2003/role/presentationRef
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Reference 7: http://www.xbrl.org/2003/role/presentationRef
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Reference 8: http://www.xbrl.org/2003/role/presentationRef
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+ Details

Related Parties (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2012	Mar. 31, 2011	Dec. 31, 2011
LFCM Holdings [Member]
Amounts recorded relating to the administrative services agreement	$ 813	$ 614
Amounts recorded relating to net referral fees for underwriting, private placement, and restructuring transactions	814	6,947
Amount receivables related to administrative and support services and reimbursement of expenses	4,632		$ 10,722
Amount receivable related to referral fees for underwriting and private placement transactions	6,606		2,928
Payables relating to certain advances and referral fees	7,253		2,060
Amounts payables related to tax receivable agreement	2,790		$ 2,970
LAZ-MD Holdings [Member]
Revenue from administrative services	$ 188	$ 188

Condensed Consolidated Statements Of Financial Condition (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2012	Dec. 31, 2011
Allowance for doubtful accounts receivable	$ 21,172	$ 19,450
Property, accumulated amortization and depreciation	265,223	266,673
Goodwill and other intangible assets, accumulated amortization	$ 28,040	$ 26,922
Class A common stock held by a subsidiary, shares	3,267,892	3,492,017
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	15,000,000	15,000,000
Class A Common Stock [Member]
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	500,000,000	500,000,000
Common stock, shares issued	123,094,507	123,009,311
Series A Preferred Stock [Member]
Preferred stock, shares issued	7,921	7,921
Preferred stock, shares outstanding	7,921	7,921
Class B Common Stock [Member]
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	1	1
Common stock, shares issued	1	1
Common stock, shares outstanding	1	1
Series B Preferred Stock [Member]
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0

Condensed Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 29,056	$ 59,983
Noncash items included in net income:
Depreciation and amortization of property	6,975	5,916
Amortization of deferred expenses, share-based incentive compensation and interest rate hedge	93,937	100,113
Amortization of intangible assets related to acquisitions	1,118	1,474
(Increase) decrease in operating assets:
Deposits with banks	36,866	69,199
Cash deposited with clearing organizations and other segregated cash	3,124	(1,518)
Receivables-net	(11,454)	47,125
Investments	2,687	13,363
Other assets	(52,523)	(11,722)
Increase (decrease) in operating liabilities:
Deposits and other payables	(17,602)	(51,497)
Accrued compensation and benefits and other liabilities	(174,391)	(302,122)
Net cash used in operating activities	(82,207)	(69,686)
CASH FLOWS FROM INVESTING ACTIVITIES:
Additions to property	(26,848)	(1,954)
Disposals of property	1,609	44
Net cash used in investing activities	(25,239)	(1,910)
Proceeds from:
Contributions from noncontrolling interests	704	884
Other financing activities		1,374
Payments for:
Capital lease obligations	(740)	(675)
Distributions to noncontrolling interests	(23,961)	(2,886)
Repurchase of common membership interests from members of LAZ-MD Holdings		(794)
Purchase of Class A common stock	(70,540)	(32,689)
Class A common stock dividends	(19,164)	(14,115)
Settlement of vested share-based incentive compensation	(24,925)	(83,016)
Other financing activities	(28)	(19)
Net cash used in financing activities	(138,654)	(131,936)
EFFECT OF EXCHANGE RATE CHANGES ON CASH	7,995	9,771
NET DECREASE IN CASH AND CASH EQUIVALENTS	(238,105)	(193,761)
CASH AND CASH EQUIVALENTS-January 1	1,003,791	1,209,695
CASH AND CASH EQUIVALENTS-March 31	$ 765,686	$ 1,015,934

Segment Information (Tables)

3 Months Ended

Mar. 31, 2012

Segment Information [Abstract]

Schedule Of Segment's Contribution With Respect To Net Revenue, Operating Expenses, Operating Income (Loss) And Total Assets


	Three Months Ended March 31,
		2012			2011
Financial Advisory	Net Revenue	$	277,196		$	228,845
	Operating Expenses		249,897			213,566

	Operating Income	$	27,299		$	15,279


Asset Management	Net Revenue	$	214,527		$	226,853
	Operating Expenses		160,501			149,204

	Operating Income	$	54,026		$	77,649


Corporate	Net Revenue	$	(5,684	)	$	(17,675	)
	Operating Expenses		37,818			1,807

	Operating Loss	$	(43,502	)	$	(19,482	)


Total	Net Revenue	$	486,039		$	438,023
	Operating Expenses		448,216			364,577

	Operating Income	$	37,823		$	73,446


	As Of
	March 31, 2012		December 31, 2011
Total Assets
Financial Advisory	$	797,733	$	767,699
Asset Management		534,558		583,524
Corporate		1,575,707		1,730,713

Total	$	2,907,998	$	3,081,936

- Definition

Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.

+ References + Details

Related Parties

3 Months Ended

Mar. 31, 2012

Related Parties [Abstract]

Related Parties

16.

RELATED PARTIES

Amounts receivable from, and payable to, related parties are set forth below:


	March 31, 2012		December 31, 2011
Receivables
LFCM Holdings	$	11,393	$	14,790
Other		3,839		3,711

Total	$	15,232	$	18,501

Payables
LFCM Holdings	$	10,043	$	4,850
Other		945		1,225

Total	$	10,988	$	6,075

LFCM Holdings

LFCM Holdings owns and operates the capital markets business and fund management activities, as well as other specified non-operating assets and liabilities, that were transferred to it by Lazard Group (referred to as the "separated businesses") in May 2005 and is owned by various current and former working members, including certain of Lazard's current and former managing directors (which also include certain of the Company's executive officers) who were or are also members of LAZ-MD Holdings. In addition to the master separation agreement dated as of May 10, 2005, by and among Lazard Ltd, Lazard Group, LAZ-MD Holdings and LFCM Holdings (the "master separation agreement"), which effected the separation and recapitalization that occurred in May 2005, LFCM Holdings entered into certain agreements that addressed various business matters associated with the separation, including agreements related to administrative and support services (the "administrative services agreement"), employee benefits, insurance matters and licensing. In addition, LFCM Holdings and Lazard Group entered into a business alliance agreement (the "business alliance agreement"). Certain of these agreements are described in more detail in the Company's Form 10-K.

For the three month periods ended March 31, 2012 and 2011, amounts recorded by Lazard Group relating to the administrative services agreement amounted to $813 and $614, respectively, and net referral fees for underwriting, private placement, M&A and restructuring transactions under the business alliance agreement amounted to $814 and $6,947, respectively. Amounts relating to the administrative services agreement are reported as reductions to operating expenses. Net referral fees for underwriting transactions under the business alliance agreement are reported in "revenue-other". Net referral fees for private placement, M&A and restructuring transactions under the business alliance agreement are reported in advisory fee revenue.

Receivables from LFCM Holdings and its subsidiaries as of March 31, 2012 and December 31, 2011 primarily include $4,632 and $10,722, respectively, related to administrative and support services, sublease income and reimbursement of expenses incurred on behalf of LFCM Holdings, and $6,606 and $2,928, respectively, related to referral fees for underwriting and private placement transactions. Payables to LFCM Holdings and its subsidiaries at March 31, 2012 and December 31, 2011 consist of $7,253 and $2,060, respectively, principally relating to certain advances and referral fees for Financial Advisory transactions and obligations pursuant to the tax receivable agreement of $2,790 at each respective date (see Note 14 of Notes to Condensed Consolidated Financial Statements).

Other

Other receivables and payables at March 31, 2012 and December 31, 2011 primarily relate to referral fees for restructuring and M&A transactions with MBA Lazard Holdings S.A. and its subsidiaries and a related party loan.

LAZ-MD Holdings

Lazard Group provides selected administrative and support services to LAZ-MD Holdings through the administrative services agreement as discussed above, with such services generally to be provided until December 31, 2014 unless terminated earlier because of a change in control of either party. Lazard Group charges LAZ-MD Holdings for these services based on Lazard Group's cost allocation methodology and, for the three month periods ended March 31, 2012 and 2011, such charges amounted to $188 for each period.

- Definition

The entire disclosure for related party transactions, including the nature of the relationship(s), a description of the transactions, the amount of the transactions, the effects of any change in the method of establishing the terms of the transaction from the previous period, stated interest rate, expiration date, terms and manner of settlement per the agreement with the related party, and amounts due to or from related parties. If the entity and one or more other entities are under common ownership or management control and this control affects the operating results or financial position, disclosure includes the nature of the control relationship even if there are no transactions between the entities. Disclosure may also include the aggregate amount of current and deferred tax expense for each statement of earnings presented where the entity is a member of a group that files a consolidated tax return, the amount of any tax related balances due to or from affiliates as of the date of each statement of financial position presented, the principal provisions of the method by which the consolidated amount of current and deferred tax expense is allocated to the members of the group and the nature and effect of any changes in that method. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 4
-Section 08
-Paragraph k

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 3A
-Section 04
-Paragraph b

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 57
-Paragraph 1-4
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 4
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-Name Accounting Standards Codification
-Topic 850
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(k))
-URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-Topic 850
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-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39678-107864

+ Details

Stockholders' Equity (Tables)

3 Months Ended

Mar. 31, 2012

Stockholders' Equity [Abstract]

Schedule Of Group Distributions


	Three Months Ended March 31,
	2012		2011
LAZ-MD Holdings	$	1,081	$	955
Subsidiaries of Lazard Ltd		19,164		14,115

	$	20,245	$	15,070

Schedule Of Accumulated Other Comprehensive Income (Loss), Net Of Tax


	March 31,			December 31,
	2012			2011
Currency translation adjustments	$	22,848		$	3,719
Interest rate hedge		(3,293	)		(3,557	)
Employee benefit plans		(94,419	)		(92,637	)

Total AOCI		(74,864	)		(92,475	)
Less amount attributable to noncontrolling interests		(2,961	)		(4,111	)

Total Lazard Ltd AOCI	$	(71,903	)	$	(88,364	)

Schedule Of Changes In Ownership Interests


	Lazard Ltd					LAZ-MD Holdings						Total Lazard Group Common Membership Interests
	Common Membership Interests		% Ownership			Common Membership Interests			% Ownership			Total Lazard Group Common Membership Interests
Balance, January 1, 2011		119,697,936		94.0	%		7,652,625			6.0	%		127,350,561
Activity January 1, 2011 to March 31, 2011:
Common membership interest activity in connection with:
Repurchase of common membership interests from LAZ-MD Holdings		–					(19,032	)					(19,032	)

Balance, March 31, 2011		119,697,936		94.0	%		7,633,593			6.0	%		127,331,529


Balance, January 1, 2012		123,009,311		94.8	%		6,756,779			5.2	%		129,766,090
Activity January 1, 2012 to March 31, 2012:
Common membership interest activity in connection with:
Exchanges for Class A common stock		85,196					(85,196	)					–

Balance, March 31, 2012		123,094,507		94.9	%		6,671,583			5.1	%		129,766,090

Schedule Of Net Income (Loss) Attributable To Noncontrolling Interests


	Net Income Attributable to Noncontrolling Interests Three Months Ended March 31,
	2012		2011
LAZ-MD Holdings	$	1,325	$	3,734
Edgewater		2,174		1,023
Other		5		219

Total	$	3,504	$	4,976


	Noncontrolling Interests As Of
	March 31, 2012		December 31, 2011
LAZ-MD Holdings	$	33,612	$	31,954
Edgewater		87,069		91,713
Other		1,763		17,046

Total	$	122,444	$	140,713

Goodwill And Other Intangible Assets

3 Months Ended

Mar. 31, 2012

Goodwill And Other Intangible Assets [Abstract]

Goodwill And Other Intangible Assets

8.	*GOODWILL AND OTHER INTANGIBLE ASSETS*

The components of goodwill and other intangible assets at March 31, 2012 and December 31, 2011 are presented below:


	March 31,		December 31,
	2012		2011
Goodwill	$	360,638	$	356,657
Other intangible assets (net of accumulated amortization)		35,324		36,442

	$	395,962	$	393,099

At March 31, 2012 and December 31, 2011, goodwill of $296,097 and $292,116, respectively, was attributable to the Company's Financial Advisory segment and, at such respective dates, $64,541 of goodwill was attributable to the Company's Asset Management segment.

Changes in the carrying amount of goodwill for the three month periods ended March 31, 2012, and 2011 are as follows:


	Three Months Ended March 31,
	2012		2011
Balance, January 1	$	356,657	$	313,229
Foreign currency translation adjustments		3,981		2,872

Balance, March 31	$	360,638	$	316,101

The gross cost and accumulated amortization of other intangible assets as of March 31, 2012 and December 31, 2011, by major intangible asset category, are as follows:


	March 31, 2012						December 31, 2011
	Gross Cost		Accumulated Amortization		Net Carrying Amount		Gross Cost		Accumulated Amortization		Net Carrying Amount
Success/performance fees	$	30,740	$	7,122	$	23,618	$	30,740	$	7,122	$	23,618
Management fees, customer relationships and non-compete agreements		32,624		20,918		11,706		32,624		19,800		12,824

	$	63,364	$	28,040	$	35,324	$	63,364	$	26,922	$	36,442

Amortization expense of intangible assets for the three month periods ended March 31, 2012 and 2011 was $1,118 and $1,474, respectively. Estimated future amortization expense is as follows:


Year Ending December 31,	Future Amortization Expense (a)
2012 (April 1 through December 31)	$	4,280
2013		10,338
2014		8,332
2015		6,735
2016		5,639

Total amortization expense	$	35,324

(a)

Approximately 46% of intangible asset amortization is attributable to a noncontrolling interest.

- Definition

The entire disclosure for the aggregate amount of goodwill and a description of intangible assets, which may include (a) for amortizable intangible assets (also referred to as finite-lived intangible assets), the carrying amount, the amount of any significant residual value, and the weighted-average amortization period, (b) for intangible assets not subject to amortization (also referred to as indefinite-lived intangible assets), the carrying amount, and (c) the amount of research and development assets acquired and written off in the period, including the line item in the income statement in which the amounts written off are aggregated, if not readily apparent from the income statement. Also discloses (a) for amortizable intangibles assets in total and by major class, the gross carrying amount and accumulated amortization, the total amortization expense for the period, and the estimated aggregate amortization expense for each of the five succeeding fiscal years, (b) for intangible assets not subject to amortization the carrying amount in total and by major class, and (c) for goodwill, in total and for each reportable segment, the changes in the carrying amount of goodwill during the period (including the aggregate amount of goodwill acquired, the aggregate amount of impairment losses recognized, and the amount of goodwill included in the gain (loss) on disposal of a reporting unit). If any part of goodwill has not been allocated to a reportable segment, discloses the unallocated amount and the reasons for not allocating. For each impairment loss recognized related to an intangible asset (excluding goodwill), discloses: (a) a description of the impaired intangible asset and the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method for determining fair value, (c) the caption in the income statement or the statement of activities in which the impairment loss is aggregated, and (d) the segment in which the impaired intangible asset is reported. For each goodwill impairment loss recognized, discloses: (a) a description of the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method of determining the fair value of the associated reporting unit, and (c) if a recognized impairment loss is an estimate not finalized and the reasons why the estimate is not final. May also disclose the nature and amount of any significant adjustments made to a previous estimate of an impairment loss.

+ References + Details

Regulatory Authorities

3 Months Ended

Mar. 31, 2012

Regulatory Authorities [Abstract]

Regulatory Authorities

17.

REGULATORY AUTHORITIES

LFNY is a U.S. registered broker-dealer and is subject to the net capital requirements of Rule 15c3-1 under the Exchange Act. Under the basic method permitted by this rule, the minimum required net capital, as defined, is a specified fixed percentage of total aggregate indebtedness recorded in LFNY's Financial and Operational Combined Uniform Single ("FOCUS") report filed with the Financial Industry Regulatory Authority ("FINRA"), or $100, whichever is greater. At March 31, 2012, LFNY's regulatory net capital was $81,766, which exceeded the minimum requirement by $77,549.

Certain U.K. subsidiaries of the Company, including LCL, Lazard Fund Managers Limited and Lazard Asset Management Limited (the "U.K. Subsidiaries") are regulated by the Financial Services Authority. At March 31, 2012, the aggregate regulatory net capital of the U.K. Subsidiaries was $155,827, which exceeded the minimum requirement by $131,663.

CFLF, under which asset management and commercial banking activities are carried out in France, is subject to regulation by the Autorité de Contrôle Prudentiel for its banking activities conducted through its subsidiary, LFB. In addition, the investment services activities of the Paris group, exercised through LFB and other subsidiaries of CFLF, primarily LFG (asset management), are subject to regulation and supervision by the Autorité des Marchés Financiers. At March 31, 2012, the consolidated regulatory net capital of CFLF was $178,345, which exceeded the minimum requirement set for regulatory capital levels by $80,612.

Certain other U.S. and non-U.S. subsidiaries are subject to various capital adequacy requirements promulgated by various regulatory and exchange authorities in the countries in which they operate. At March 31, 2012, for those subsidiaries with regulatory capital requirements, their aggregate net capital was $108,515, which exceeded the minimum required capital by an aggregate of $85,762.

At March 31, 2012, each of these subsidiaries individually was in compliance with its regulatory capital requirements.

[Lazard Ltd had been subject to supervision by the SEC as a Supervised Investment Bank Holding Company ("SIBHC"). As a SIBHC, Lazard Ltd was subject to group-wide supervision, which required it to compute allowable capital and risk allowances on a consolidated basis. However, pursuant to Section 617 of the Dodd-Frank Wall Street Reform and Consumer Protection Act (the "Dodd-Frank Act"), the SEC's SIBHC program was eliminated on July 21, 2011. Pursuant to relevant rules in the European Union, Lazard Ltd is required to be supervised by another regulatory body, either in the U.S. or the European Union. The Dodd-Frank Act allows certain securities holding companies seeking consolidated supervision, including Lazard Ltd, to elect to be supervised by the Board of Governors of the Federal Reserve. Lazard Ltd anticipates that the Board of

Governors of the Federal Reserve will adopt regulations pursuant to Section 618 of the Dodd-Frank Act in the near future for companies that seek to come under its consolidated supervision. Once it analyzes the final scope of such regulations, Lazard Ltd will determine whether it will elect to register to come under the consolidated supervision of the Federal Reserve. Until such regulations are adopted, however, we cannot determine the full impact of such regulations on us. The Dodd-Frank Act and the rules and regulations that may be adopted thereunder (including regulations that have not yet been proposed) could have other effects on us. We continue to monitor the process as such rules are proposed and adopted.]

- Definition

The entire disclosure for banks, savings institutions, and credit unions, for regulatory capital requirements imposed by the Federal Reserve System (FRB), the Federal Deposit Insurance Corporation (FDIC), the Office of Thrift Supervision (OTS) or for any state imposed capital requirements, as applicable. The disclosure may include (1) a description of regulatory capital requirements (a) for capital adequacy purposes and (b) established by the prompt corrective action provisions of Section 38 of the Federal Depository Insurance Act; (2) the actual or possible material effects of noncompliance with such requirements; (3) whether the entity is in compliance with the regulatory capital requirements including (a) required and actual ratios and amounts of Tier 1 leverage, Tier 1 risk-based, and total risk-based capital, tangible capital (for savings institutions), and Tier 3 capital for market risk (for certain banks and bank holding companies), (b) factors that may significantly affect capital adequacy; (4) the prompt corrective action category in which the entity was classified as of its most recent notification; (5) whether management believes any conditions or events since notification have changed the entity's category. Also may include additional information that might be disclosed in situations where substantial doubt about the entity's ability to continue as a going concern for a reasonable period of time.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Audit and Accounting Guide (AAG)
-Number AAG-DEP
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-Paragraph 15, 16, 17
-IssueDate 2006-05-01
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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+ Details

Business Acquisitions

3 Months Ended

Mar. 31, 2012

Business Acquisitions [Abstract]

Business Acquisitions

7.	*BUSINESS ACQUISITIONS*

On July 15, 2009, the Company established a private equity business with Edgewater. Edgewater manages funds primarily focused on buy-out and growth equity investments in middle market companies. The acquisition was structured as a purchase by Lazard Group of interests in a holding company that in turn owns interests in the general partner and management company entities of the current Edgewater private equity funds (the "Edgewater Acquisition"). Following the Edgewater Acquisition, Edgewater's leadership team retained a substantial economic interest in such entities. Edgewater's activities are recorded in the Company's Asset Management segment.

The aggregate fair value of the consideration recognized by the Company at the acquisition date was $61,624. Such consideration consisted of (i) a one-time cash payment, (ii) 1,142,857 shares of Class A common stock (the "Initial Shares") and (iii) up to 1,142,857 additional shares of Class A common stock subject to earnout criteria and payable over time (the "Earnout Shares"). The Initial Shares are subject to forfeiture provisions that lapse only upon the achievement of certain performance thresholds and transfer restrictions during the four year period ending December 2014. The Earnout Shares will be issued only if certain performance thresholds are met. On December 30, 2011, 285,715 Initial Shares and 57,287 Earnout Shares became unrestricted or were otherwise delivered.

In prior years, the Company made certain other business acquisitions. These purchases were effected through an exchange of a combination of cash, Class A common stock, and by Lazard Ltd issuing shares of non-participating convertible Series A and Series B preferred stock, which were each convertible into Class A common stock. In connection with such acquisitions, as of both March 31, 2012 and December 31, 2011, 47,474 shares of Class A common stock were issuable on a non-contingent basis. At March 31, 2012, no shares of Series A preferred stock were convertible into shares of Class A common stock on a contingent or a non-contingent basis. See Note 11 of Notes to Condensed Consolidated Financial Statements for additional information relating to preferred stock.

- Definition

The entire disclosure for a business combination (or series of individually immaterial business combinations) completed during the period, including background, timing, and recognized assets and liabilities. The disclosure may include leverage buyout transactions (as applicable).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 88-16
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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-URI http://asc.fasb.org/extlink&oid=6972119&loc=d3e1486-128463

Reference 19: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6972119&loc=d3e1383-128463

+ Details

Employee Benefit Plans

3 Months Ended

Mar. 31, 2012

Employee Benefit Plans [Abstract]

Employee Benefit Plans

13.

EMPLOYEE BENEFIT PLANS

The Company provides retirement and other post-retirement benefits to certain of its employees through defined contribution and defined benefit pension plans and other post-retirement plans. These plans generally provide benefits to participants based on average levels of compensation. Expenses related to the Company's employee benefit plans are included in "compensation and benefits" expense on the consolidated statements of operations.

Employer Contributions to Pension Plans—The Company's funding policy for its U.S. and non-U.S. pension plans is to fund when required or when applicable upon an agreement with the plans' Trustees. Management also evaluates from time to time whether to make voluntary contributions to the plans. The Company made a contribution to the U.S. pension plans during the three month period ended March 31, 2012 of approximately $700.

In accordance with agreements reached with the Trustees of certain U.K. pension plans in 2005, the Company was obligated to make further contributions to such pension plans based upon the cumulative performance of the plans' assets against specific benchmarks as measured on June 1, 2009 and subsequently remeasured on June 1, 2010. As of December 31, 2009, the obligation related to the cumulative underperformance of the plans' assets (the "underperformance obligation") was payable in equal monthly installments through May 2013. During the year ended December 31, 2010, the Company contributed approximately $8,600 to settle the plans' underperformance obligation in full.

Further, on June 30, 2009, the Company and the Trustees concluded the December 31, 2007 triennial valuation of the U.K. pension plans discussed above, pursuant to which the Company agreed to annual future contributions to the plan through 2018. The agreement also required the Company to secure its obligations' to the pension plans by placing in escrow 12.5 million British pounds (with the Company depositing such amount in escrow in July 2009), with a final redemption date of December 31, 2018. The terms of this agreement were subject to adjustment (see below) based on the results of the December 31, 2010 triennial valuation and subsequent triennial valuations.

During 2011, the Company and the Trustees of the U.K. pension plans referred to above commenced negotiations regarding the terms of the December 31, 2010 triennial valuations of the plans and potential future contributions to the plans. We currently anticipate that the valuations will be concluded during the second quarter of 2012. In addition, the Company and the Trustees agreed in principle on a tentative agreement that would supersede the June 2009 agreement described above and that provides pension funding terms whereby the Company: (i) made a contribution in December 2011 to the plans of 2.3 million British pounds ($3,687 at December 31, 2011 exchange rates) from the escrow account, (ii) will make contributions of 1 million British pounds during each year from 2012 through 2020 inclusive and (iii) will amend and extend the existing escrow arrangement into an account security arrangement covering 10.2 million British pounds from the existing escrow and additional contributions of 1 million British pounds into such account security arrangement during each year from 2014 through 2020, inclusive, with an agreement that assets from the account security arrangements will be released into the plans if and to the extent that the value of the plans' assets falls short of the funding target for June 1, 2020 that has been agreed upon with the Trustees. The terms of the tentative agreement are subject to adjustment based on the results of subsequent triennial valuations. Additionally, the Company is discussing with the Trustees the extent to which the Company would contribute to the plans to cover their administrative expenses. The aggregate escrow balance at March 31, 2012 has been recorded in "cash deposited with clearing organizations and other segregated cash" on the accompanying condensed consolidated statement of financial condition. Income on the escrow balance accretes to the Company and is recorded in interest income.

During the three month period ended March 31, 2012, no contribution to these U.K. pension plans was required, and no contributions were required to be made to other non-U.S. pension plans.

The following table summarizes the components of net benefit cost (credit) for the three month periods ended March 31, 2012 and 2011:


	Pension Plans						Post-Retirement Medical Plans
	Three Months Ended March 31,
	2012			2011			2012		2011
Components of Net Benefit Cost (Credit):
Service cost	$	172		$	163		$	11	$	15
Interest cost		6,902			7,067			53		70
Expected return on plan assets		(6,672	)		(7,622	)		–		–
Amortization of:
Prior service cost		701			740			–		–
Net actuarial loss		411			63			–		–

Net benefit cost	$	1,514		$	411		$	64	$	85

- Definition

The entire disclosure for pension and other postretirement benefits.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph a
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph b
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph h
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph q
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 8
-Subparagraph m
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 106
-Paragraph 518
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 87
-Paragraph 264
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 03-2
-Paragraph 8
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Principles Board Opinion (APB)
-Number 30
-Paragraph 26
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Staff Position (FSP)
-Number FAS106-2
-Paragraph 20, 21, 22
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 158
-Paragraph 7, 21, 22
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5, 6, 7, 8
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 13: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Implementation Guide (Q and A)
-Number FAS88
-Paragraph 63
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 14: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-URI http://asc.fasb.org/topic&trid=2235017

+ Details

Condensed Consolidated Statements Of Operations - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
REVENUE
Investment banking and other advisory fees	$ 273,541	$ 220,327
Money management fees	204,561	214,692
Interest income	2,150	3,492
Other	26,209	22,830
Total revenue	506,461	461,341
Interest expense	20,422	23,318
Net revenue	486,039	438,023
OPERATING EXPENSES
Compensation and benefits	338,317	269,999
Occupancy and equipment	26,282	22,708
Marketing and business development	28,267	18,111
Technology and information services	20,393	19,567
Professional services	9,311	9,841
Fund administration and outsourced services	13,451	13,251
Amortization of intangible assets related to acquisitions	1,118	1,474
Other	11,077	9,626
Total operating expenses	448,216	364,577
OPERATING INCOME	37,823	73,446
Provision for income taxes	8,767	13,463
NET INCOME	29,056	59,983
LESS-NET INCOME ATTRIBUTABLE TO NONCONTROLLING INTERESTS	3,504	4,976
NET INCOME ATTRIBUTABLE TO LAZARD LTD	$ 25,552	$ 55,007
WEIGHTED AVERAGE SHARES OF COMMON STOCK OUTSTANDING:
Basic	119,229,541	115,334,754
Diluted	136,594,178	138,590,593
NET INCOME PER SHARE OF COMMON STOCK:
Basic	$ 0.21	$ 0.48
Diluted	0.20	0.43
DIVIDENDS DECLARED PER SHARE OF COMMON STOCK	$ 0.16	$ 0.125

Senior Debt (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Senior Debt (Narrative) (Details) - USD ($) $ in Thousands	Mar. 31, 2012	Dec. 31, 2011
Debt Instrument [Line Items]
Senior revolving credit facility over next 3 years	$ 150,000
Fair value of senior debt	1,174,000	$ 1,138,000
Fair value of senior debt in excess of the aggregate carrying value	97,000	$ 61,000
Unused line of credit facility available	315,000
LFB [Member]
Debt Instrument [Line Items]
Unused line of credit facility available	93,000
Edgewater [Member]
Debt Instrument [Line Items]
Unused line of credit facility available	$ 65,000
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Senior Debt, Maturity Date	Apr. 29, 2013
Revolving Credit Facility annual interest rate	1.90%

Income Taxes (Details) - USD ($) $ in Thousands		3 Months Ended
Income Taxes (Details) - USD ($) $ in Thousands	May 10, 2005	Mar. 31, 2012	Mar. 31, 2011
Income tax provisions		$ 8,767	$ 13,463
Income tax provisions, effective tax rates		23.20%	18.30%
U.S. federal statutory rate		35.00%
LFCM Holdings [Member]
Percentage of cash savings to pay per the tax receivable agreement	85.00%

Incentive Plans (Summary Of Activity Related To Shares Of Restricted Class A Common Stock) (Details) - Restricted Stock [Member] - $ / shares	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares/Units, Beginning Balance	95,332	95,332
Shares/Units, Granted	577,323	183,422
Shares/Units, Vested	(119,552)	(183,422)
Shares/Units, Closing Balance	553,103	95,332
Weighted Average Grant Date Fair Value, Beginning Balance	$ 37.63	$ 37.63
Weighted Average Grant Date Fair Value, Granted	29.25	45.26
Weighted Average Grant Date Fair Value, Vested	28.54	45.26
Weighted Average Grant Date Fair Value, Ending Balance	$ 30.85	$ 37.63

Commitments And Contingencies

3 Months Ended

Mar. 31, 2012

Commitments And Contingencies [Abstract]

Commitments And Contingencies

10.

COMMITMENTS AND CONTINGENCIES

Leases—The Company has various leases and other contractual commitments arising in the ordinary course of business. In the opinion of management, the fulfillment of such commitments, in accordance with their terms, will not have a material adverse effect on the Company's consolidated financial position or results of operations.

Guarantees—In the normal course of business, LFB provides indemnifications to third parties to protect them in the event of non-performance by its clients. At March 31, 2012, LFB had $5,482 of such indemnifications and held $4,198 of collateral/counter-guarantees to secure these commitments. The Company believes the likelihood of loss with respect to these indemnities is remote. Accordingly, no liability is recorded in the consolidated statement of financial condition.

Other Commitments—In the normal course of business, LFB enters into commitments to extend credit, predominately at variable interest rates. Such commitments at March 31, 2012 aggregated $23,409. These commitments have varying expiration dates and are fully collateralized and generally contain requirements for the counterparty to maintain a minimum collateral level. These commitments may not represent future cash requirements as they may expire without being drawn upon.

See Notes 5, 7 and 13 of Notes to Condensed Consolidated Financial Statements for information regarding commitments relating to investment capital funding commitments, business acquisitions and obligations to fund our pension plans, respectively.

The Company has various other contractual commitments arising in the ordinary course of business. In addition, from time to time, LFB enters into underwriting commitments in which it participates as a joint underwriter. The settlement of such transactions are not expected to have a material adverse effect on the Company's consolidated financial position or results of operations. At March 31, 2012, LFB had no such underwriting commitments.

Legal—The Company is involved from time to time in judicial, regulatory and arbitration proceedings and inquiries concerning matters arising in connection with the conduct of our businesses, including proceedings initiated by former employees alleging wrongful termination. The Company reviews such matters on a case-by-case basis and establishes any required accrual if a loss is probable and the amount of such loss can be reasonably estimated. The Company does experience significant variation in its revenue and earnings on a quarterly basis. Accordingly, the results of any pending matter or matters could be significant when compared to the Company's earnings in any particular fiscal quarter. The Company believes, however, based on currently available information, that the results of any pending matters, in the aggregate, will not have a material effect on its business or financial condition.

- Definition

The entire disclosure for commitments and contingencies.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Interpretation (FIN)
-Number 14
-Paragraph 3
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 5
-Paragraph 9, 10, 11, 12
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.25)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
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-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6952336&loc=d3e14435-108349

Reference 5: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=6398077&loc=d3e12565-110249

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 440
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6394976&loc=d3e25287-109308

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6449706&loc=d3e16207-108621

+ Details

Commitments And Contingencies (Details) $ in Thousands	3 Months Ended
Commitments And Contingencies (Details) $ in Thousands	Mar. 31, 2012 USD ($)
Commitments And Contingencies [Abstract]
Guarantees indemnifications	$ 5,482
Collateral/counter-guarantees	4,198
Other commitments	$ 23,409

Investments (Tables)

3 Months Ended

Mar. 31, 2012

Investments [Abstract]

Company's Investments And Securities Sold, Not Yet Purchased


	March 31,		December 31,
	2012		2011
Debt	$	9,149	$	36,966

Equities (a)		170,438		156,053

Other:
Interests in alternative asset management funds (a)		37,851		20,610
Fixed income funds (a)		32,951		31,121
Private equity		116,563		122,718
Equity method investments		11,321		11,053

		198,686		185,502

Total investments		378,273		378,521
Less:
Interest-bearing deposits (included in "debt" above)		2,958		2,834
Equity method investments		11,321		11,053

Investments, at fair value	$	363,994	$	364,634

Securities sold, not yet purchased, at fair value (included in "other liabilities")	$	1,952	$	4,282

(a)

Gross Investment Gains And Losses On Investments


	Three Months Ended March 31,
	2012		2011
Gross investment gains	$	27,644	$	6,375
Gross investment losses	$	984	$	1,016

Schedule Of Trading Securities Gross Unrealized Investment Gains And Losses

	Three Months Ended March 31,
		2012		2011
Gross unrealized investment gains		$	0	$	573
Gross unrealized investment losses		$	0	$	120

Condensed Consolidated Statements Of Changes In Stockholders' Equity (Parenthetical) - Common Stock [Member] - USD ($)

3 Months Ended

Mar. 31, 2012

Dec. 31, 2011

Mar. 31, 2011

Dec. 31, 2010

Common stock, issued

123,094,508

^[1]

123,009,312

^[1]

119,697,937

^[2]

119,697,937

^[2]

Class A Common Stock [Member]

Common stock, issued

123,094,507

123,009,311

119,697,936

Share-based incentive compensation and related tax benefits

$ 972

Class B Common Stock [Member]

Common stock, issued

[1]	Includes 123,009,311 and 123,094,507 shares of the Company's Class A common stock issued at January 1, 2012 and March 31, 2012, respectively, and 1 share of the Company's Class B common stock issued at each such date.
[2]	Includes 119,697,936 shares of the Company's Class A common stock issued at January 1, 2011 and March 31, 2011 and 1 share of the Company's Class B common stock issued at each such date.

Recent Accounting Developments

3 Months Ended

Mar. 31, 2012

Recent Accounting Developments [Abstract]

Recent Accounting Developments

2.	*RECENT ACCOUNTING DEVELOPMENTS*

Fair Value Measurements—In the first quarter of 2012, the Company adopted the amended fair value measurement guidance issued by the Financial Accounting Standards Board (the "FASB"), which the FASB stated was designed to achieve common fair value measurement and disclosure requirements between U.S. GAAP and International Financial Reporting Standards ("IFRS"). Although many of the changes for U.S. GAAP purposes are clarifications of existing guidance or wording changes to align with IFRS, additional disclosures about fair value measurements are required, including (i) a quantitative disclosure of the unobservable inputs and assumptions used in the measurement, (ii) the valuation processes used and the sensitivity of fair value measurements related to investments categorized within Level 3 of the hierarchy of fair value measurements to changes in unobservable inputs and the interrelationships between those unobservable inputs, if any, and (iii) the categorization by level of the fair value hierarchy for items that are not measured at fair value in the statement of financial condition but for which the fair value is required to be disclosed. The amended fair value measurement guidance became effective for interim and annual periods beginning after December 15, 2011 and is applied prospectively. The adoption of the amended fair value measurement guidance did not have a material impact on the Company's consolidated financial statements, primarily because substantially all Level 3 assets are carried at net asset value ("NAV") or its equivalent.

Other Comprehensive Income—In the first quarter of 2012, the Company adopted the FASB's amended guidance regarding the presentation of comprehensive income, which the FASB stated was designed to improve comparability, consistency and transparency. The amendment required that all changes in comprehensive income be presented either in (i) a single continuous statement of comprehensive income or in (ii) two separate but consecutive statements. The amendment was to be applied retrospectively and is effective with interim and annual periods beginning after December 15, 2011, with early adoption permitted. The Company elected the two-statement method.

- Definition

Tabular disclosure of changes in accounting principles, including adoption of new accounting pronouncements, that describes the new methods, amount and effects on financial statement line items.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 154
-Paragraph 2, 17, 18
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Principles Board Opinion (APB)
-Number 28
-Paragraph 23, 24
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 01
-Paragraph b
-Subparagraph 6
-Article 10

Reference 4: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
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-Paragraph 1
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-Paragraph 2
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Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Indirect Effects of a Change in Accounting Principle
-URI http://asc.fasb.org/extlink&oid=6515603

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Accounting Change
-URI http://asc.fasb.org/extlink&oid=6503790

Reference 8: http://www.xbrl.org/2003/role/presentationRef
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-URI http://asc.fasb.org/extlink&oid=6507316

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Direct Effects of a Change in Accounting Principle
-URI http://asc.fasb.org/extlink&oid=6510796

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 270
-SubTopic 10
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-Paragraph 1
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+ Details

Senior Debt (Schedule Of Senior Debt) (Details) - USD ($)	3 Months Ended
	Mar. 31, 2012	Dec. 31, 2011
Debt Instrument [Line Items]
Senior Debt, Outstanding	$ 1,076,850,000	$ 1,076,850,000
Senior Debt [Member]
Debt Instrument [Line Items]
Senior Debt, Outstanding	1,076,850,000	1,076,850,000
Senior Debt [Member] \| Lazard Group 7.125% Senior Notes [Member]
Debt Instrument [Line Items]
Senior Debt, Initial Principal Amount	$ 550,000,000
Senior Debt, Maturity Date	May 15, 2015
Interest rate of senior notes	7.125%
Senior Debt, Outstanding	$ 528,500,000	528,500,000
Senior Debt [Member] \| Lazard Group 6.85% Senior Notes [Member]
Debt Instrument [Line Items]
Senior Debt, Initial Principal Amount	$ 600,000,000
Senior Debt, Maturity Date	Jun. 15, 2017
Interest rate of senior notes	6.85%
Senior Debt, Outstanding	$ 548,350,000	548,350,000
Senior Debt [Member] \| Lazard Group Credit Facility [Member]
Debt Instrument [Line Items]
Senior Debt, Initial Principal Amount	$ 150,000,000
Senior Debt, Maturity Date	Apr. 29, 2013
Interest rate of senior notes	1.90%
Senior Debt, Outstanding

Fair Value Measurements (Narrative) (Details) - USD ($) $ in Thousands		3 Months Ended
	Mar. 01, 2012	Mar. 31, 2012	Dec. 31, 2011
Fair Value, Option, Quantitative Disclosures [Line Items]
Unfunded Commitments		$ 35,883	$ 52,197
Reduction from original commitment		17,400
Commitment transferred to investor group		$ 50,000
Transferring Date	Mar. 01, 2012
EGCP III [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Remaining commitment date		Oct. 12, 2023
CP II [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
End of the investment period		Feb. 25, 2017
Private Equity [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Unfunded Commitments		$ 35,883	$ 52,197
Private Equity [Member] \| EGCP III [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Unfunded Commitments		$ 25,673
End of the investment period		Oct. 12, 2016
Private Equity [Member] \| CP II [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Unfunded Commitments		$ 2,124
Australian Private Equity Fund [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Unfunded Commitments		$ 8,086
Maximum [Member] \| Australian Private Equity Fund [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Remaining commitment date		Nov. 11, 2019
Minimum [Member] \| Australian Private Equity Fund [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Remaining commitment date		Nov. 11, 2016

Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2012

Fair Value Measurements [Abstract]

Categorization Of Investments And Certain Other Assets And Liabilities Measured At Fair Value On Recurring Basis


	March 31, 2012
	Level 1		Level 2		Level 3		Total
Assets:
Investments:
Debt (excluding interest-bearing deposits)	$	1,609	$	4,582	$	–	$	6,191
Equities		118,154		52,057		227		170,438
Other (excluding equity method investments):
Interest in alternative asset management funds		–		31,946		5,905		37,851
Fixed income funds		19,141		13,810		–		32,951
Private equity		–		–		116,563		116,563
Derivatives		–		1,454		–		1,454

Total Assets	$	138,904	$	103,849	$	122,695	$	365,448

Liabilities:
Securities sold, not yet purchased	$	1,952	$	–	$	–	$	1,952
Derivatives		–		96,092		–		96,092

Total Liabilities	$	1,952	$	96,092	$	–	$	98,044


	December 31, 2011
	Level 1		Level 2		Level 3		Total
Assets:
Investments:
Debt (excluding interest-bearing deposits)	$	17,111	$	17,021	$	–	$	34,132
Equities		115,380		37,332		3,341		156,053
Other (excluding equity method investments):
Interest in alternative asset management funds		–		13,569		7,041		20,610
Fixed income funds		27,539		3,582		–		31,121
Private equity		–		–		122,718		122,718
Derivatives		–		7,131		–		7,131

Total Assets	$	160,030	$	78,635	$	133,100	$	371,765

Liabilities:
Securities sold, not yet purchased	$	4,282	$	–	$	–	$	4,282
Derivatives		–		30,713		–		30,713

Total Liabilities	$	4,282	$	30,713	$	–	$	34,995

Summary Of Changes In Fair Value Of The Company's Level 3 Assets


	Three Months Ended March 31, 2012
	Beginning Balance		Net Unrealized/ Realized Gains (Losses) Included In Revenue-Other (a)		Purchases/ Acquisitions		Sales/ Dispositions			Foreign Currency Translation Adjustments		Ending Balance
	Beginning Balance				Purchases/ Acquisitions		Sales/ Dispositions			Foreign Currency Translation Adjustments		Ending Balance
Investments:
Equities	$	3,341	$	–	$	10	$	(3,130	)	$	6	$	227
Interest in alternative asset management funds		7,041		127		–		(1,263	)		–		5,905
Private equity		122,718		7,564		2,696		(17,872	)		1,457		116,563

Total Level 3 Assets	$	133,100	$	7,691	$	2,706	$	(22,265	)	$	1,463	$	122,695


	Three Months Ended March 31, 2011
	Beginning Balance		Net Unrealized/ Realized Gains (Losses) Included In Revenue-Other (a)		Purchases/ Acquisitions		Sales/ Dispositions			Foreign Currency Translation Adjustments		Ending Balance
	Beginning Balance				Purchases/ Acquisitions		Sales/ Dispositions			Foreign Currency Translation Adjustments		Ending Balance
Investments:
Equities	$	316	$	–	$	–	$	(195	)	$	8	$	129
Private equity		163,482		279		12,153		(7,108	)		2,681		171,487

Total Level 3 Assets	$	163,798	$	279	$	12,153	$	(7,303	)	$	2,689	$	171,616

Fair Value Of Certain Investments Based On NAV


	March 31, 2012
								Estimated Liquidation Period of Investments Not Redeemable									Investments Redeemable
	Fair Value		Unfunded Commitments		% of Fair Value Not Redeemable			% Next 5 Years			% 5-10 Years			% Thereafter			Redemption Frequency	Redemption Notice Period
Equity funds	$	52,211	$	–		2	%		1	%		0	%		1	%	Quarterly	60 Days
Interests in alternative asset management funds		37,851		–		0	%		0	%		0	%		0	%	Quarterly	>90 Days
Fixed income funds		13,810		–		0	%		0	%		0	%		0	%	Monthly	60 Days
Private equity funds		115,200		35,883		100	%		26	%		34	%		40	%	NA	NA

Total	$	219,072	$	35,883


	December 31, 2011
								Estimated Liquidation Period of Investments Not Redeemable									Investments Redeemable
	Fair Value		Unfunded Commitments		% of Fair Value Not Redeemable			% Next 5 Years			% 5-10 Years			% Thereafter			Redemption Frequency	Redemption Notice Period
Equity funds	$	40,512	$	–		2	%		1	%		0	%		1	%	Quarterly	60 Days
Interests in alternative asset management funds		20,600		–		0	%		0	%		0	%		0	%	Quarterly	>90 Days
Fixed income funds		3,582		–		0	%		0	%		0	%		0	%	Monthly	60 Days
Private equity funds		121,276		52,197		100	%		33	%		28	%		39	%	NA	NA

Total	$	185,970	$	52,197

- Definition

Tabular disclosure of the fair value measurement of assets using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes during the period attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets) and gains or losses recognized in other comprehensive income, and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issuances, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs), by class of asset.

+ References + Details

Goodwill And Other Intangible Assets (Schedule Of Estimated Future Amortization Expense) (Details)
$ in Thousands

3 Months Ended

Mar. 31, 2012

USD ($)

Goodwill And Other Intangible Assets [Abstract]

2012 (April 1 through December 31)

$ 4,280

^[1]

2013

10,338

^[1]

2014

8,332

^[1]

2015

6,735

^[1]

2016

5,639

^[1]

Total amortization expense

$ 35,324

^[1]

Intangible asset amortization attributable to noncontrolling interest, percentage

46.00%

[1]	Approximately 46% of intangible asset amortization is attributable to a noncontrolling interest.

Segment Information

3 Months Ended

Mar. 31, 2012

Segment Information [Abstract]

Segment Information

18.

SEGMENT INFORMATION

The Company's reportable segments offer different products and services and are managed separately as different levels and types of expertise are required to effectively manage the segments' transactions. Each segment is reviewed to determine the allocation of resources and to assess its performance. The Company's principal operating activities are included in two business segments as described in Note 1 above - Financial Advisory and Asset Management. In addition, as described in Note 1 above, the Company records selected other activities in its Corporate segment.

The Company's segment information for the three month periods ended March 31, 2012 and 2011 is prepared using the following methodology:

•

Revenue and expenses directly associated with each segment are included in determining operating income.

•

Expenses not directly associated with specific segments are allocated based on the most relevant measures applicable, including revenue headcount, square footage and other factors.

•

Segment assets are based on those directly associated with each segment, and include an allocation of certain assets relating to various segments, based on the most relevant measures applicable, including headcount, square footage and other factors.

The Company allocates investment gains and losses, interest income and interest expense among the various segments based on the segment in which the underlying asset or liability is reported.

Each segment's operating expenses include (i) compensation and benefits expenses incurred directly in support of the businesses and (ii) other operating expenses, which include directly incurred expenses for occupancy and equipment, marketing and business development, technology and information services, professional services, fund administration and outsourced services and indirect support costs (including compensation and other operating expenses related thereto) for administrative services. Such administrative services include, but are not limited to, accounting, tax, legal, facilities management and senior management activities.

Management evaluates segment results based on net revenue and operating income (loss) and believes that the following information provides a reasonable representation of each segment's contribution with respect to net revenue, operating income (loss) and total assets:


	Three Months Ended March 31,
		2012			2011
Financial Advisory	Net Revenue	$	277,196		$	228,845
	Operating Expenses		249,897			213,566

	Operating Income	$	27,299		$	15,279


Asset Management	Net Revenue	$	214,527		$	226,853
	Operating Expenses		160,501			149,204

	Operating Income	$	54,026		$	77,649


Corporate	Net Revenue	$	(5,684	)	$	(17,675	)
	Operating Expenses		37,818			1,807

	Operating Loss	$	(43,502	)	$	(19,482	)


Total	Net Revenue	$	486,039		$	438,023
	Operating Expenses		448,216			364,577

	Operating Income	$	37,823		$	73,446


	As Of
	March 31, 2012		December 31, 2011
Total Assets
Financial Advisory	$	797,733	$	767,699
Asset Management		534,558		583,524
Corporate		1,575,707		1,730,713

Total	$	2,907,998	$	3,081,936

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 131
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 34
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8981-108599

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 35
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8984-108599

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 42
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9054-108599

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 40
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9031-108599

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 31
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8924-108599

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8538-108599

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 30
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8906-108599

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 41
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9038-108599

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 29
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8864-108599

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
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-Publisher FASB
-Name Accounting Standards Codification
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Reference 13: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
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-Paragraph 1
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Reference 14: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
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-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8595-108599

Reference 15: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
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-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8933-108599

+ Details

Condensed Consolidated Statements Of Comprehensive Income (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Condensed Consolidated Statements Of Comprehensive Income [Abstract]
Tax benefit associated with actuary loss	$ 1,282	$ 1,935
Tax expense associated with adjustment for item reclassified to earnings	$ 297	$ 225

Receivables - Net (Details) - USD ($) $ in Thousands	3 Months Ended
Receivables - Net (Details) - USD ($) $ in Thousands	Mar. 31, 2012	Mar. 31, 2011	Dec. 31, 2011
Receivables - Net [Abstract]
Estimated allowance for doubtful accounts	$ 21,172		$ 19,450
Bad debt expense	1,281	$ 967
Charge-offs, foreign currency translation and other adjustments	441	$ (487)
Receivables deemed past due or uncollectible	$ 21,615		$ 22,785

Senior Debt (Tables)

3 Months Ended

Mar. 31, 2012

Senior Debt [Abstract]

Schedule Of Senior Debt


								Outstanding As Of
	Initial Principal Amount		Maturity Date		Annual Interest Rate			March 31,		December 31,
	Initial Principal Amount		Maturity Date		Annual Interest Rate			2012		2011
Lazard Group 7.125% Senior Notes	$	550,000		5/15/15		7.125	%	$	528,500	$	528,500
Lazard Group 6.85% Senior Notes		600,000		6/15/17		6.85	%		548,350		548,350
Lazard Group Credit Facility		150,000		4/29/13		1.90	%		–		–

Total								$	1,076,850	$	1,076,850

Investments (Company's Investments And Securities Sold, Not Yet Purchased) (Details) - USD ($)
$ in Thousands

Mar. 31, 2012

Dec. 31, 2011

Schedule of Investments [Line Items]

Debt securities

$ 9,149

$ 36,966

Equities

^[1]

170,438

156,053

Total investments

378,273

378,521

Investments, at fair value

363,994

364,634

Interest-bearing deposits (included in "debt" above)

2,958

2,834

Securities sold, not yet purchased, at fair value (included in "other liabilities")

1,952

4,282

Lazard Fund Interests in fixed income funds

5,056

5,212

Lazard Fund Interests in Equities

22,224

19,857

Lazard Fund Interests in alternative asset management funds

3,619

2,256

Debt [Member]

Schedule of Investments [Line Items]

Equities

6,191

34,132

Other [Member]

Schedule of Investments [Line Items]

Other investments

198,686

185,502

Fixed Income Funds [Member] | Debt [Member]

Schedule of Investments [Line Items]

Other investments

^[1]

32,951

31,121

Interests In Alternative Asset Management Funds [Member]

Schedule of Investments [Line Items]

Other investments

^[1]

37,851

20,610

Private Equity [Member]

Schedule of Investments [Line Items]

Other investments

116,563

122,718

Equity Method Investments [Member]

Schedule of Investments [Line Items]

Other investments

$ 11,321

$ 11,053

[1]

Regulatory Authorities (Details) $ in Thousands	3 Months Ended
Regulatory Authorities (Details) $ in Thousands	Mar. 31, 2012 USD ($)
Minimum capital requirement is defined as -A fixed percentage of total aggregate indebtedness recorded in the FOCUS report or $100 whichever is greater	$ 100
LFNY [Member]
Regulatory net capital	81,766
Regulatory capital in excess of minimum requirement	77,549
U.K. Subsidiaries [Member]
Regulatory net capital	155,827
Regulatory capital in excess of minimum requirement	131,663
CFLF [Member]
Regulatory net capital	178,345
Regulatory capital in excess of minimum requirement	80,612
Other U.S. And Non-U.S. Subsidiaries [Member]
Regulatory net capital	108,515
Regulatory capital in excess of minimum requirement	$ 85,762

Stockholders' Equity (Schedule Of Changes In Ownership Interests) (Details) - shares	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Beginning balance (in shares)	129,766,090	127,350,561
Repurchase of common membership interests from LAZ-MD Holdings		(19,032)
Ending balance (in shares)	129,766,090	127,331,529
LAZ-MD Holdings [Member]
Beginning balance (in shares)	6,756,779	7,652,625
Percentage Of Ownership, Beginning Balance	5.20%	6.00%
Common membership interest activity in connection with, Exchanges for Class A common stock	(85,196)
Repurchase of common membership interests from LAZ-MD Holdings		(19,032)
Ending balance (in shares)	6,671,583	7,633,593
Percentage Of Ownership, Ending Balance	5.10%	6.00%
Lazard Ltd [Member]
Beginning balance (in shares)	123,009,311	119,697,936
Percentage Of Ownership, Beginning Balance	94.80%	94.00%
Common membership interest activity in connection with, Exchanges for Class A common stock	85,196
Ending balance (in shares)	123,094,507	119,697,936
Percentage Of Ownership, Ending Balance	94.90%	94.00%

Net Income Per Share Of Class A Common Stock (Tables)

3 Months Ended

Mar. 31, 2012

Net Income Per Share Of Class A Common Stock [Abstract]

Schedule Of Company's Basic And Diluted Net Income (Loss) Per Share And Weighted Average Shares Outstanding


	Three Months Ended March 31,
	2012		2011
Net income attributable to Lazard Ltd		$25,552		$55,007
Add (deduct) - adjustment associated with Class A common stock issuable on a non-contingent basis		–		97

Net income attributable to Lazard Ltd - basic		25,552		55,104
Add - dilutive effect, as applicable, of:
Adjustments to income relating to interest expense and changes in net income attributable to noncontrolling interests resulting from assumed Class A common stock issuances in connection with share-based incentive compensation, convertible debt in 2011, convertible preferred stock and exchangeable interests, net of tax		1,190		4,424

Net income attributable to Lazard Ltd - diluted		$ 26,742		$59,528


Weighted average number of shares of Class A common stock outstanding		118,679,859		111,681,448
Add - adjustment for shares of Class A common stock issuable on a non-contingent basis		549,682		3,653,306

Weighted average number of shares of Class A common stock outstanding - basic		119,229,541		115,334,754
Add - dilutive effect, as applicable, of:
Weighted average number of incremental shares of Class A common stock issuable from share-based incentive compensation, convertible debt in 2011, convertible preferred stock and exchangeable interests		17,364,637		23,255,839

Weighted average number of shares of Class A common stock outstanding - diluted		136,594,178		138,590,593

Net income attributable to Lazard Ltd per share of Class A common stock:
Basic		$0.21		$0.48

Diluted		$0.20		$0.43

Derivatives (Net Gains (Losses) With Respect To Derivative Instruments Not Designated As Hedging Instruments) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) on derivatives not designated as hedging instruments	$ (14,944)	$ (8,547)
Forward Foreign Currency Exchange Rate Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) on derivatives not designated as hedging instruments	(1,922)	(6,258)
Equity And Fixed Income Swaps And Other [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) on derivatives not designated as hedging instruments	(10,255)	$ (2,289)
Lazard Fund Interests And Other Similar Deferred Compensation Arrangements [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) on derivatives not designated as hedging instruments	$ (2,767)

Stockholders' Equity (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands		1 Months Ended			3 Months Ended
	Apr. 24, 2012	Apr. 30, 2012	Oct. 31, 2011	Feb. 28, 2011	Mar. 31, 2012	Mar. 31, 2011	Dec. 31, 2011
Class of Stock [Line Items]
Quarterly dividend declared per share					$ 0.16	$ 0.125
Authorized shares of preferred stock					15,000,000		15,000,000
Par value of preferred stock					$ 0.01		$ 0.01
Percentage of common membership interests and corresponding voting interests in subsidiary by noncontrolling interests					5.10%		5.20%
Class A common stock dividends		$ 24,619			$ 19,164	$ 14,115
Lazard Ltd [Member]
Class of Stock [Line Items]
Shares in exchange of a like number of common membership interests					85,196
Class A Common Stock [Member]
Class of Stock [Line Items]
Quarterly dividend declared per share		$ 0.20
Number of shares/common membership interests purchased					2,378,445
Aggregate cost of shares/common membership interests purchased					$ 70,540
Series A Preferred Stock [Member]
Class of Stock [Line Items]
Convertible preferred stock					7,921		7,921
Series B Preferred Stock [Member]
Class of Stock [Line Items]
Convertible preferred stock					0		0
Share Repurchase Program [Member]
Class of Stock [Line Items]
Stock/membership interest repurchase program authorized amount			$ 125,000	$ 250,000	$ 375,000
Share repurchase amount unused				$ 16,603	$ 141,603
Share Repurchase Program [Member] \| Class A Common Stock [Member] \| Lazard Ltd [Member]
Class of Stock [Line Items]
Stock/membership interest repurchase program authorized amount	$ 125,000

Organization And Basis Of Presentation

3 Months Ended

Mar. 31, 2012

Organization And Basis Of Presentation [Abstract]

Organization And Basis Of Presentation

1.	*ORGANIZATION AND BASIS OF PRESENTATION*

Organization

Lazard Ltd, a Bermuda holding company, and its subsidiaries (collectively referred to as "Lazard Ltd", "Lazard", "we" or the "Company"), including Lazard Ltd's indirect investment in Lazard Group LLC, a Delaware limited liability company (collectively referred to, together with its subsidiaries, as "Lazard Group"), is one of the world's preeminent financial advisory and asset management firms and has long specialized in crafting solutions to the complex financial and strategic challenges of our clients. We serve a diverse set of clients around the world, including corporations, partnerships, institutions, governments and high net worth individuals.

Lazard Ltd indirectly held approximately 94.9% and 94.8% of all outstanding Lazard Group common membership interests as of March 31, 2012 and December 31, 2011, respectively. Lazard Ltd, through its control of the managing members of Lazard Group, controls Lazard Group. LAZ-MD Holdings LLC ("LAZ-MD Holdings"), an entity owned by Lazard Group's current and former managing directors, held approximately 5.1% and 5.2% of the outstanding Lazard Group common membership interests as of March 31, 2012 and December 31, 2011, respectively. Additionally, LAZ-MD Holdings was the sole owner of the one issued and outstanding share of Lazard Ltd's Class B common stock (the "Class B common stock") which provided LAZ-MD Holdings with approximately 5.1% and 5.2% of the voting power but no economic rights in the Company as of such respective dates. Subject to certain limitations, LAZ-MD Holdings' interests in Lazard Group are exchangeable for Lazard Ltd Class A common stock, par value $0.01 per share ("Class A common stock"). Lazard Group is governed by an Operating Agreement dated as of May 10, 2005, as amended (the "Operating Agreement").

Our sole operating asset is our indirect ownership of common membership interests of Lazard Group and our managing member interest of Lazard Group, whose principal operating activities are included in two business segments:

•

Financial Advisory, which offers corporate, partnership, institutional, government, sovereign and individual clients across the globe a wide array of financial advisory services regarding mergers and acquisitions ("M&A") and other strategic matters, restructurings, capital structure, capital raising and various other financial matters, and

•

Asset Management, which includes strategies for the management of equity and fixed income securities and alternative investment and private equity funds, as well as wealth management.

In addition, we record selected other activities in our Corporate segment, including management of cash, certain investments and the commercial banking activities of Lazard Group's Paris-based Lazard Frères Banque SA ("LFB"). We also allocate outstanding indebtedness to our Corporate segment.

LFB is a registered bank regulated by the Autorité de Contrôle Prudentiel. It is engaged primarily in commercial and private banking services for clients and funds managed by Lazard Frères Gestion SAS ("LFG") and other clients, investment banking activities, including participation in underwritten offerings of securities in France, asset-liability management and limited trading in securities and foreign exchange.

Basis of Presentation

The accompanying condensed consolidated financial statements of Lazard Ltd have been prepared pursuant to the rules and regulations of the U.S. Securities and Exchange Commission (the "SEC") regarding interim financial reporting. Accordingly, they do not include all of the information and notes required by accounting principles generally accepted in the United States of America ("U.S. GAAP") for complete financial statements and should be read in conjunction with the audited consolidated financial statements and notes thereto included in Lazard Ltd's Annual Report on Form 10-K for the year ended December 31, 2011 (the "Form 10-K"). The accompanying December 31, 2011 unaudited condensed consolidated statement of financial condition data was derived from audited consolidated financial statements, but does not include all disclosures required by U.S. GAAP for annual financial statement purposes. The accompanying condensed consolidated financial statements reflect all adjustments, which are, in the opinion of management, necessary for a fair presentation of the financial position, results of operations and cash flows for the interim periods presented. Preparing financial statements requires management to make estimates and assumptions that affect the amounts that are reported in the financial statements and the accompanying disclosures. Although these estimates are based on management's knowledge of current events and actions that Lazard may undertake in the future, actual results may differ materially from the estimates. The consolidated results of operations for the three month period ended March 31, 2012 are not necessarily indicative of the results to be expected for any future interim or annual period.

The condensed consolidated financial statements include Lazard Ltd, Lazard Group and Lazard Group's principal operating subsidiaries: Lazard Frères & Co. LLC ("LFNY"), a New York limited liability company, along with its subsidiaries, including Lazard Asset Management LLC and its subsidiaries (collectively referred to as "LAM"); the French limited liability companies Compagnie Financière Lazard Frères SAS ("CFLF") along with its subsidiaries, LFB and LFG, and Maison Lazard SAS and its subsidiaries; and Lazard & Co., Limited ("LCL"), through Lazard & Co., Holdings Limited, an English private limited company ("LCH"), together with their jointly owned affiliates and subsidiaries.

The Company's policy is to consolidate (i) entities in which it has a controlling financial interest, (ii) variable interest entities ("VIEs") where the Company has a variable interest and is deemed to be the primary beneficiary and (iii) limited partnerships where the Company is the general partner, unless the presumption of control is overcome. When the Company does not have a controlling interest in an entity, but exerts significant influence over the entity's operating and financial decisions, the Company applies the equity method of accounting in which it records in earnings its share of earnings or losses of the entity. Intercompany transactions and balances have been eliminated.

- Definition

The entire disclosure for organization, consolidation and basis of presentation of financial statements disclosure.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Name Statement of Position (SOP)
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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+ Details

Related Parties (Tables)

3 Months Ended

Mar. 31, 2012

Related Parties [Abstract]

Schedule Of Amounts Receivable From And Payable To Related Parties


	March 31, 2012		December 31, 2011
Receivables
LFCM Holdings	$	11,393	$	14,790
Other		3,839		3,711

Total	$	15,232	$	18,501

Payables
LFCM Holdings	$	10,043	$	4,850
Other		945		1,225

Total	$	10,988	$	6,075

Incentive Plans (Schedule Of Issuance Of RSUs And Charges To Retained Earnings) (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Incentive Plans [Abstract]
Number of RSUs issued	101,597	60,223
Charges to retained earnings, net of estimated forfeitures	$ 2,912	$ 2,409

Stockholders' Equity (Schedule Of Accumulated Other Comprehensive Income (Loss), Net Of Tax) (Details) - USD ($) $ in Thousands	Mar. 31, 2012	Dec. 31, 2011
Stockholders' Equity [Abstract]
Currency translation adjustments	$ 22,848	$ 3,719
Interest rate hedge	(3,293)	(3,557)
Employee benefit plans	(94,419)	(92,637)
Total AOCI	(74,864)	(92,475)
Less amount attributable to noncontrolling interests	(2,961)	(4,111)
Total Lazard Ltd AOCI	$ (71,903)	$ (88,364)

- Definition

The total of net gain (loss), prior service cost (credit), and transition assets (obligations), as well as minimum pension liability if still remaining, included in accumulated other comprehensive income associated with a defined benefit pension or other postretirement plan(s) because they have yet to be recognized as components of net periodic benefit cost.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
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Reference 4: http://www.xbrl.org/2003/role/presentationRef
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+ Details

- Definition

Accumulated adjustment, net of tax, that results from the process of translating subsidiary financial statements and foreign equity investments into the reporting currency from the functional currency of the reporting entity, net of reclassification of realized foreign currency translation gains or losses.

+ References

+ Details

- Definition

Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.

+ References

+ Details

Derivatives (Tables)

3 Months Ended

Mar. 31, 2012

Derivatives [Abstract]

Fair Value Of Derivatives Reported On Consolidated Statements Of Financial Condition


	March 31,		December 31,
	2012		2011
Derivative Assets:
Forward foreign currency exchange rate contracts	$	1,403	$	4,245
Equity and fixed income swaps and other		51		2,886

	$	1,454	$	7,131


Derivative Liabilities:
Forward foreign currency exchange rate contracts	$	1,478	$	445
Interest rate swaps		274		277
Equity and fixed income swaps		4,054		91
Lazard Fund Interests and other similar deferred compensation arrangements (see Note 12)		90,286		29,900

	$	96,092	$	30,713

Net Gains (Losses) With Respect To Derivative Instruments Not Designated As Hedging Instruments


	Three Months Ended March 31,
	2012			2011
Forward foreign currency exchange rate contracts	$	(1,922	)	$	(6,258	)
Equity and fixed income swaps and other		(10,255	)		(2,289	)
Lazard Fund Interests and other similar deferred compensation arrangements		(2,767	)		–

	$	(14,944	)	$	(8,547	)

Receivables - Net

3 Months Ended

Mar. 31, 2012

Receivables - Net [Abstract]

Receivables - Net

3.	*RECEIVABLES - NET*

The Company's "receivables - net" represents receivables from fees, customers and other and related parties.

Receivables are stated net of an estimated allowance for doubtful accounts of $21,172 and $19,450 at March 31, 2012 and December 31, 2011, respectively, for past due amounts and for specific accounts deemed uncollectible, which may include situations where a fee is in dispute. The Company recorded bad debt expense of $1,281 and $967 for the three month periods ended March 31, 2012 and 2011, respectively. In addition, the Company recorded charge-offs, foreign currency translation and other adjustments, which resulted in a net increase (decrease) to the allowance for doubtful accounts of $441 and $(487) for the three month periods ended March 31, 2012 and 2011, respectively. At March 31, 2012 and December 31, 2011, the Company had receivables deemed past due or uncollectible of $21,615 and $22,785 respectively.

Investments (Recognized Gross Investment Gains And Losses In "Revenue-Other") (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Investments [Abstract]
Gross investment gains	$ 27,644	$ 6,375
Gross investment losses	$ 984	$ 1,016

Employee Benefit Plans (Components Of Net Benefit Cost (Credit)) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 172	$ 163
Interest cost	6,902	7,067
Expected return on plan assets	(6,672)	(7,622)
Amortization of Prior service cost	701	740
Amortization of Net actuarial loss	411	63
Net benefit cost	1,514	411
Post-Retirement Medical Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	11	15
Interest cost	53	70
Expected return on plan assets
Amortization of Prior service cost
Amortization of Net actuarial loss
Net benefit cost	$ 64	$ 85

- Definition

The net increase or decrease of changes in the value of either the benefit obligation or the plan assets resulting from experience different from that assumed or from a change in an actuarial assumption, or the consequence of a decision to temporarily deviate from the substantive plan.

+ References

+ Details

- Definition

An amount calculated as a basis for determining the extent of delayed recognition of the effects of changes in the fair value of assets. The expected return on plan assets is determined based on the expected long-term rate of return on plan assets and the market-related value of plan assets.

+ References

+ Details

- Definition

The increase in a defined benefit pension plan's projected benefit obligation or a defined benefit postretirement plan's accumulated postretirement benefit obligation due to the passage of time.

+ References + Details

- Definition

The actuarial present value of benefits attributed by the pension benefit formula to services rendered by employees during the period. The portion of the expected postretirement benefit obligation attributed to employee service during the period. The service cost component is a portion of the benefit obligation and is unaffected by the funded status of the plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 106
-Paragraph 518
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 87
-Paragraph 264
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph a, h
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Reference 4: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Service Cost (Component of Net Periodic Pension Cost)
-URI http://asc.fasb.org/extlink&oid=6525008

+ Details

Incentive Plans (Summary Of Fund Interests And Other Similar Deferred Compensation Arrangements) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2012 USD ($)
Incentive Plans [Abstract]
Prepaid Compensation Asset, Balance January 1, 2012	$ 17,782
Prepaid Compensation Asset, Granted	64,598
Prepaid Compensation Asset, Amortization (including grants of awards to retirement-eligible recipients)	(6,185)
Prepaid Compensation Asset, Foreign currency translation and other adjustments	162
Prepaid Compensation Asset, Balance, March 31, 2012	76,357
Derivative Liability, Balance January 1, 2012	29,900
Derivative Liability, Granted	64,598
Derivative Liability, Settled	(6,922)
Derivative Liability, Increase in fair value	2,767
Derivative Liability, Foreign currency translation and other adjustments	(57)
Derivative Liability, Balance, March 31, 2012	$ 90,286