1001 - Document - Document and Entity Information link:calculationLink link:presentationLink link:definitionLink 1003 - Statement - CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION link:calculationLink link:presentationLink link:definitionLink 1004 - Statement - CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION (Parenthetical) link:calculationLink link:presentationLink link:definitionLink 1005 - Statement - CONSOLIDATED STATEMENTS OF OPERATIONS link:calculationLink link:presentationLink link:definitionLink 1006 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME link:calculationLink link:presentationLink link:definitionLink 1007 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) link:calculationLink link:presentationLink link:definitionLink 1008 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS link:calculationLink link:presentationLink link:definitionLink 1009 - Statement - CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY link:calculationLink link:presentationLink link:definitionLink 1010 - Statement - CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Parenthetical) link:calculationLink link:presentationLink link:definitionLink 1011 - Disclosure - ORGANIZATION AND BASIS OF PRESENTATION link:calculationLink link:presentationLink link:definitionLink 1012 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES link:calculationLink link:presentationLink link:definitionLink 1013 - Disclosure - RECENT ACCOUNTING DEVELOPMENTS link:calculationLink link:presentationLink link:definitionLink 1014 - Disclosure - RECEIVABLES - NET link:calculationLink link:presentationLink link:definitionLink 1015 - Disclosure - INVESTMENTS link:calculationLink link:presentationLink link:definitionLink 1016 - Disclosure - FAIR VALUE MEASUREMENTS link:calculationLink link:presentationLink link:definitionLink 1017 - Disclosure - DERIVATIVES link:calculationLink link:presentationLink link:definitionLink 1018 - Disclosure - PROPERTY-NET link:calculationLink link:presentationLink link:definitionLink 1019 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS link:calculationLink link:presentationLink link:definitionLink 1020 - Disclosure - OTHER ASSETS AND OTHER LIABILITIES link:calculationLink link:presentationLink link:definitionLink 1021 - Disclosure - SENIOR AND SUBORDINATED DEBT link:calculationLink link:presentationLink link:definitionLink 1022 - Disclosure - COMMITMENTS AND CONTINGENCIES link:calculationLink link:presentationLink link:definitionLink 1023 - Disclosure - STOCKHOLDERS' EQUITY link:calculationLink link:presentationLink link:definitionLink 1024 - Disclosure - INCENTIVE PLANS link:calculationLink link:presentationLink link:definitionLink 1025 - Disclosure - EMPLOYEE BENEFIT PLANS link:calculationLink link:presentationLink link:definitionLink 1026 - Disclosure - COST SAVING INITIATIVES AND 2010 RESTRUCTURING PLAN link:calculationLink link:presentationLink link:definitionLink 1027 - Disclosure - INCOME TAXES link:calculationLink link:presentationLink link:definitionLink 1028 - Disclosure - NET INCOME PER SHARE OF CLASS A COMMON STOCK link:calculationLink link:presentationLink link:definitionLink 1029 - Disclosure - RELATED PARTIES link:calculationLink link:presentationLink link:definitionLink 1030 - Disclosure - REGULATORY AUTHORITIES link:calculationLink link:presentationLink link:definitionLink 1031 - Disclosure - SEGMENT INFORMATION link:calculationLink link:presentationLink link:definitionLink 1032 - Disclosure - ORGANIZATION AND BASIS OF PRESENTATION (Policies) link:calculationLink link:presentationLink link:definitionLink 1033 - Disclosure - INVESTMENTS (Tables) link:calculationLink link:presentationLink link:definitionLink 1034 - Disclosure - FAIR VALUE MEASUREMENTS (Tables) link:calculationLink link:presentationLink link:definitionLink 1035 - Disclosure - DERIVATIVES (Tables) link:calculationLink link:presentationLink link:definitionLink 1036 - Disclosure - PROPERTY-NET (Tables) link:calculationLink link:presentationLink link:definitionLink 1037 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS (Tables) link:calculationLink link:presentationLink link:definitionLink 1038 - Disclosure - OTHER ASSETS AND OTHER LIABILITIES (Tables) link:calculationLink link:presentationLink link:definitionLink 1039 - Disclosure - SENIOR AND SUBORDINATED DEBT (Tables) link:calculationLink link:presentationLink link:definitionLink 1040 - Disclosure - COMMITMENTS AND CONTINGENCIES (Tables) link:calculationLink link:presentationLink link:definitionLink 1041 - Disclosure - STOCKHOLDERS' EQUITY (Tables) link:calculationLink link:presentationLink link:definitionLink 1042 - Disclosure - INCENTIVE PLANS (Tables) link:calculationLink link:presentationLink link:definitionLink 1043 - Disclosure - EMPLOYEE BENEFIT PLANS (Tables) link:calculationLink link:presentationLink link:definitionLink 1044 - Disclosure - COST SAVING INITIATIVES AND 2010 RESTRUCTURING PLAN (Tables) link:calculationLink link:presentationLink link:definitionLink 1045 - Disclosure - INCOME TAXES (Tables) link:calculationLink link:presentationLink link:definitionLink 1046 - Disclosure - NET INCOME PER SHARE OF CLASS A COMMON STOCK (Tables) link:calculationLink link:presentationLink link:definitionLink 1047 - Disclosure - RELATED PARTIES (Tables) link:calculationLink link:presentationLink link:definitionLink 1048 - Disclosure - SEGMENT INFORMATION (Tables) link:calculationLink link:presentationLink link:definitionLink 1049 - Disclosure - Organization and Basis of Presentation - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 1050 - Disclosure - Significant Accounting Policies - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 1051 - Disclosure - Receivables - Net - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 1052 - Disclosure - Investments - Company's Investments and Securities Sold, Not Yet Purchased (Detail) link:calculationLink link:presentationLink link:definitionLink 1053 - Disclosure - Investments - Company's Investments and Securities Sold, Not Yet Purchased (Parenthetical) (Detail) link:calculationLink link:presentationLink link:definitionLink 1054 - Disclosure - Investments - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 1055 - Disclosure - Investments - Schedule of Trading Securities Gross Unrealized Investment Gains and Losses (Detail) link:calculationLink link:presentationLink link:definitionLink 1056 - Disclosure - Fair Value Measurements - Categorization of Investments and Certain Other Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) link:calculationLink link:presentationLink link:definitionLink 1057 - Disclosure - Fair Value Measurements - Summary of Changes in Fair Value of Company's Level 3 Assets (Detail) link:calculationLink link:presentationLink link:definitionLink 1058 - Disclosure - Fair Value Measurements - Summary of Changes in Fair Value of Company's Level 3 Assets (Parenthetical) (Detail) link:calculationLink link:presentationLink link:definitionLink 1059 - Disclosure - Fair Value Measurements - Financial Instruments Not Measured at Fair Value (Detail) link:calculationLink link:presentationLink link:definitionLink 1060 - Disclosure - Fair Value Measurements - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 1061 - Disclosure - Fair Value Measurements - Fair Value of Certain Investments Based on Nav (Detail) link:calculationLink link:presentationLink link:definitionLink 1062 - Disclosure - Derivatives - Fair Value of Derivatives Reported on Consolidated Statements of Financial Condition (Detail) link:calculationLink link:presentationLink link:definitionLink 1063 - Disclosure - Derivatives - Net Gains (Losses) With Respect to Derivative Instruments Not Designated as Hedging Instruments (Detail) link:calculationLink link:presentationLink link:definitionLink 1064 - Disclosure - Derivatives - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 1065 - Disclosure - Property-Net - Property-Net (Detail) link:calculationLink link:presentationLink link:definitionLink 1066 - Disclosure - Goodwill and Other Intangible Assets - Components of Goodwill and Other Intangible Assets (Detail) link:calculationLink link:presentationLink link:definitionLink 1067 - Disclosure - Goodwill and Other Intangible Assets - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 1068 - Disclosure - Goodwill and Other Intangible Assets - Changes in Carrying Amount of Goodwill (Detail) link:calculationLink link:presentationLink link:definitionLink 1069 - Disclosure - Goodwill and Other Intangible Assets - Gross Cost and Accumulated Amortization of Other Intangible Assets (Detail) link:calculationLink link:presentationLink link:definitionLink 1070 - Disclosure - Goodwill and Other Intangible Assets - Estimated Future Amortization Expense (Detail) link:calculationLink link:presentationLink link:definitionLink 1071 - Disclosure - Goodwill and Other Intangible Assets - Estimated Future Amortization Expense (Parenthetical) (Detail) link:calculationLink link:presentationLink link:definitionLink 1072 - Disclosure - Other Assets and Other Liabilities - Schedule of Other Assets (Detail) link:calculationLink link:presentationLink link:definitionLink 1073 - Disclosure - Other Assets and Other Liabilities - Schedule of Other Liabilities (Detail) link:calculationLink link:presentationLink link:definitionLink 1074 - Disclosure - Senior and Subordinated Debt - Senior Debt (Detail) link:calculationLink link:presentationLink link:definitionLink 1075 - Disclosure - Senior and Subordinated Debt - Senior Debt (Parenthetical) (Detail) link:calculationLink link:presentationLink link:definitionLink 1076 - Disclosure - Senior and Subordinated Debt - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 1077 - Disclosure - Senior and Subordinated Debt - Debt Maturities Relating to Senior Borrowings Outstanding (Detail) link:calculationLink link:presentationLink link:definitionLink 1078 - Disclosure - Commitments and Contingencies - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 1079 - Disclosure - Commitments and Contingencies - Schedule of Future Minimum Rental Payment for Operating Leases and Capital Leases (Detail) link:calculationLink link:presentationLink link:definitionLink 1080 - Disclosure - Stockholders' Equity - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 1081 - Disclosure - Stockholders' Equity - Lazard Group Distributed Amounts to Subsidiaries of Lazard Ltd and Laz-MD Holdings (Detail) link:calculationLink link:presentationLink link:definitionLink 1082 - Disclosure - Stockholders' Equity - Schedule of Share Repurchase Program (Detail) link:calculationLink link:presentationLink link:definitionLink 1083 - Disclosure - Stockholders' Equity - Accumulated Other Comprehensive Income (Loss), Net of Tax (Detail) link:calculationLink link:presentationLink link:definitionLink 1084 - Disclosure - Stockholders' Equity - Changes in Ownership Interests (Detail) link:calculationLink link:presentationLink link:definitionLink 1085 - Disclosure - Stockholders' Equity - Net Income (Loss) Attributable to Noncontrolling Interests (Detail) link:calculationLink link:presentationLink link:definitionLink 1086 - Disclosure - Incentive Plans - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 1087 - Disclosure - Incentive Plans - Summary of Impact of Share-Based Incentive Plans on Compensation and Benefits Expense (Detail) link:calculationLink link:presentationLink link:definitionLink 1088 - Disclosure - Incentive Plans - Summary of Impact of Share-Based Incentive Plans on Compensation and Benefits Expense (Parenthetical) (Detail) link:calculationLink link:presentationLink link:definitionLink 1089 - Disclosure - Incentive Plans - Schedule of Issuance of Rsus and Charges to Retained Earnings (Detail) link:calculationLink link:presentationLink link:definitionLink 1090 - Disclosure - Incentive Plans - Schedule of Activity Relating to Rsus and Dsus (Detail) link:calculationLink link:presentationLink link:definitionLink 1091 - Disclosure - Incentive Plans - Schedule of Activity Relating to Rsus and Dsus (Parenthetical) (Detail) link:calculationLink link:presentationLink link:definitionLink 1092 - Disclosure - Incentive Plans - Summary of Activity Related to Shares of Restricted Class A Common Stock (Detail) link:calculationLink link:presentationLink link:definitionLink 1093 - Disclosure - Incentive Plans - Summary of Activity Related to Shares of Restricted Class A Common Stock (Parenthetical) (Detail) link:calculationLink link:presentationLink link:definitionLink 1094 - Disclosure - Incentive Plans - Summary of Funds Interests and Other Similar Deferred Compensation Arrangements (Detail) link:calculationLink link:presentationLink link:definitionLink 1095 - Disclosure - Incentive Plans - Summary of Impact of Fund Interests and Other Similar Deferred Compensation Arrangements (Detail) link:calculationLink link:presentationLink link:definitionLink 1096 - Disclosure - Employee Benefit Plans - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 1097 - Disclosure - Employee Benefit Plans - Summary of Changes in Benefit Obligations, the Fair Value of Assets, Funded Status and Amounts Recognized in the Consolidated Statements of Financial Condition (Detail) link:calculationLink link:presentationLink link:definitionLink 1098 - Disclosure - Employee Benefit Plans - Summary of Changes in Benefit Obligations, the Fair Value of Assets, Funded Status and Amounts Recognized in the Consolidated Statements of Financial Condition (Parenthetical) (Detail) link:calculationLink link:presentationLink link:definitionLink 1099 - Disclosure - Employee Benefit Plans - Summary of Fair Value of Plan Assets, Accumulated Benefit Obligation and Projected Benefit Obligation (Detail) link:calculationLink link:presentationLink link:definitionLink 1100 - Disclosure - Employee Benefit Plans - Components of Net Benefit Cost (Detail) link:calculationLink link:presentationLink link:definitionLink 1101 - Disclosure - Employee Benefit Plans - Components of Net Benefit Cost (Parenthetical) (Detail) link:calculationLink link:presentationLink link:definitionLink 1102 - Disclosure - Employee Benefit Plans - Schedule of Amounts in Aoci on Consolidated Statement of Financial Condition Expected to be Recognized (Detail) link:calculationLink link:presentationLink link:definitionLink 1103 - Disclosure - Employee Benefit Plans - Schedule of Assumptions Used to Develop Actuarial Present Value of Projected Benefit Obligation and Net Periodic Pension Cost (Detail) link:calculationLink link:presentationLink link:definitionLink 1104 - Disclosure - Employee Benefit Plans - Schedule of Effect of Assumed Cost of Healthcare Reported for Company's Post Retirement Plans (Detail) link:calculationLink link:presentationLink link:definitionLink 1105 - Disclosure - Employee Benefit Plans - Schedule of Expected Benefit Payments (Detail) link:calculationLink link:presentationLink link:definitionLink 1106 - Disclosure - Employee Benefit Plans - Schedule of Categorization of Plans' Assets (Detail) link:calculationLink link:presentationLink link:definitionLink 1107 - Disclosure - Cost Saving Initiatives and 2010 Restructuring Plan - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 1108 - Disclosure - Cost Saving Initiatives and 2010 Restructuring Plan - Schedule of Pre-tax Implementation Expense (Detail) link:calculationLink link:presentationLink link:definitionLink 1109 - Disclosure - Cost Saving Initiatives and 2010 Restructuring Plan - Schedule of Obligation Pursuant To Cost Savings Initiatives (Detail) link:calculationLink link:presentationLink link:definitionLink 1110 - Disclosure - Income Taxes - Schedule of Provision for Income Taxes (Detail) link:calculationLink link:presentationLink link:definitionLink 1111 - Disclosure - Income Taxes - Schedule of Reconciliation of U.S. Federal Statutory Income Tax Rate to Effective Tax Rate (Detail) link:calculationLink link:presentationLink link:definitionLink 1112 - Disclosure - Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Detail) link:calculationLink link:presentationLink link:definitionLink 1113 - Disclosure - Income Taxes - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 1114 - Disclosure - Income Taxes - Schedule of Gross Unrecognized Tax Benefits (Detail) link:calculationLink link:presentationLink link:definitionLink 1115 - Disclosure - Income Taxes - Schedule of Gross Unrecognized Tax Benefits (Parenthetical) (Detail) link:calculationLink link:presentationLink link:definitionLink 1116 - Disclosure - Income Taxes - Schedule of Additional Information Relating to Unrecognized Tax Benefits (Detail) link:calculationLink link:presentationLink link:definitionLink 1117 - Disclosure - Income Taxes - Schedule of Additional Information Relating to Unrecognized Tax Benefits (Parenthetical) (Detail) link:calculationLink link:presentationLink link:definitionLink 1118 - Disclosure - Net Income Per Share of Class a Common Stock - Company's Basic and Diluted Net Income Per Share and Weighted Average Shares Outstanding (Detail) link:calculationLink link:presentationLink link:definitionLink 1119 - Disclosure - Related Parties - Amounts Receivable From and Payable to Related Parties (Detail) link:calculationLink link:presentationLink link:definitionLink 1120 - Disclosure - Related Parties - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 1121 - Disclosure - Regulatory Authorities - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 1122 - Disclosure - Segment Information - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 1123 - Disclosure - Segment Information - Segment's Contribution with Respect to Net Revenue, Operating Expenses, Operating Income (Loss) and Total Assets (Detail) link:calculationLink link:presentationLink link:definitionLink 1124 - Disclosure - Segment Information - Segment's Contribution with Respect to Net Revenue, Operating Expenses, Operating Income (Loss) and Total Assets (Parenthetical) (Detail) link:calculationLink link:presentationLink link:definitionLink 1125 - Disclosure - Segment Information - Schedule of Revenue from External Customers and Identifiable Assets, by Geographical Areas (Detail) link:calculationLink link:presentationLink link:definitionLink 1126 - Disclosure - Supplemental Financial Information - Quarterly Results (Unaudited) - Schedule of Quarterly Financial Information (Detail) link:calculationLink link:presentationLink link:definitionLink 1127 - Disclosure - Schedule I - Condensed Statements of Financial Condition (Parent Company) (Detail) link:calculationLink link:presentationLink link:definitionLink 1128 - Disclosure - Schedule I - Condensed Statements of Financial Condition (Parent Company) (Parenthetical) (Detail) link:calculationLink link:presentationLink link:definitionLink 1129 - Disclosure - Schedule I - Condensed Statements of Operations (Parent Company) (Detail) link:calculationLink link:presentationLink link:definitionLink 1130 - Disclosure - Schedule I - Condensed Statements of Comprehensive Income (Parent Company) (Detail) link:calculationLink link:presentationLink link:definitionLink 1131 - Disclosure - Schedule I - Condensed Statements of Comprehensive Income (Parent Company) (Parenthetical) (Detail) link:calculationLink link:presentationLink link:definitionLink 1132 - Disclosure - Schedule I - Condensed Statements of Cash Flows (Parent Company) (Detail) link:calculationLink link:presentationLink link:definitionLink 1133 - Disclosure - Schedule I - Condensed Statements of Changes in Stockholders' Equity (Parent Company) (Detail) link:calculationLink link:presentationLink link:definitionLink 1134 - Disclosure - Schedule I - Condensed Statements of Changes in Stockholders' Equity (Parent Company) (Parenthetical) (Detail) link:calculationLink link:presentationLink link:definitionLink