0000001 - Document - Cover link:presentationLink link:calculationLink link:definitionLink 9952151 - Statement - Consolidated Statements of Financial Condition (Unaudited) link:presentationLink link:calculationLink link:definitionLink 9952152 - Statement - Consolidated Statements of Financial Condition (Unaudited) (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952153 - Statement - Consolidated Statements of Earnings (Unaudited) link:presentationLink link:calculationLink link:definitionLink 9952154 - Statement - Consolidated Statements of Comprehensive Income (Unaudited) link:presentationLink link:calculationLink link:definitionLink 9952155 - Statement - Consolidated Statements of Comprehensive Income (Unaudited) (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952156 - Statement - Consolidated Statements of Changes in Equity (Unaudited) link:presentationLink link:calculationLink link:definitionLink 9952157 - Statement - Consolidated Statements of Changes in Equity (Unaudited) (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952158 - Statement - Consolidated Statements of Cash Flows (Unaudited) link:presentationLink link:calculationLink link:definitionLink 9952159 - Statement - Consolidated Statements of Cash Flows (Unaudited) (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952160 - Disclosure - Organization and Basis of Presentation link:presentationLink link:calculationLink link:definitionLink 9952161 - Disclosure - Summary of Significant Accounting Policies link:presentationLink link:calculationLink link:definitionLink 9952162 - Disclosure - Accounting Developments link:presentationLink link:calculationLink link:definitionLink 9952163 - Disclosure - Assets and Liabilities Held for Sale link:presentationLink link:calculationLink link:definitionLink 9952164 - Disclosure - Fair Value Disclosures link:presentationLink link:calculationLink link:definitionLink 9952165 - Disclosure - Derivative Financial Instruments link:presentationLink link:calculationLink link:definitionLink 9952166 - Disclosure - Collateralized Transactions link:presentationLink link:calculationLink link:definitionLink 9952167 - Disclosure - Securitization Activities link:presentationLink link:calculationLink link:definitionLink 9952168 - Disclosure - Variable Interest Entities link:presentationLink link:calculationLink link:definitionLink 9952169 - Disclosure - Investments link:presentationLink link:calculationLink link:definitionLink 9952170 - Disclosure - Credit Losses on Financial Assets Measured at Amortized Cost link:presentationLink link:calculationLink link:definitionLink 9952171 - Disclosure - Goodwill and Intangible Assets link:presentationLink link:calculationLink link:definitionLink 9952172 - Disclosure - Revenues from Contracts with Customers link:presentationLink link:calculationLink link:definitionLink 9952173 - Disclosure - Compensation Plans link:presentationLink link:calculationLink link:definitionLink 9952174 - Disclosure - Borrowings link:presentationLink link:calculationLink link:definitionLink 9952175 - 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Disclosure - Derivative Financial Instruments (Tables) link:presentationLink link:calculationLink link:definitionLink 9955515 - Disclosure - Collateralized Transactions (Tables) link:presentationLink link:calculationLink link:definitionLink 9955516 - Disclosure - Securitization Activities (Tables) link:presentationLink link:calculationLink link:definitionLink 9955517 - Disclosure - Variable Interest Entities (Tables) link:presentationLink link:calculationLink link:definitionLink 9955518 - Disclosure - Investments (Tables) link:presentationLink link:calculationLink link:definitionLink 9955519 - Disclosure - Credit Losses on Financial Assets Measured at Amortized Cost (Tables) link:presentationLink link:calculationLink link:definitionLink 9955520 - Disclosure - Goodwill and Intangible Assets (Tables) link:presentationLink link:calculationLink link:definitionLink 9955521 - Disclosure - Revenues from Contracts with Customers (Tables) link:presentationLink link:calculationLink link:definitionLink 9955522 - Disclosure - Compensation Plans (Tables) link:presentationLink link:calculationLink link:definitionLink 9955523 - Disclosure - Borrowings (Tables) link:presentationLink link:calculationLink link:definitionLink 9955524 - Disclosure - Total Equity (Tables) link:presentationLink link:calculationLink link:definitionLink 9955525 - Disclosure - Income Taxes (Tables) link:presentationLink link:calculationLink link:definitionLink 9955526 - Disclosure - Commitments, Contingencies and Guarantees (Tables) link:presentationLink link:calculationLink link:definitionLink 9955527 - Disclosure - Regulatory Requirements (Tables) link:presentationLink link:calculationLink link:definitionLink 9955528 - Disclosure - Segment Reporting (Tables) link:presentationLink link:calculationLink link:definitionLink 9955529 - Disclosure - Related Party Transactions (Tables) link:presentationLink link:calculationLink link:definitionLink 9955530 - Disclosure - Organization and Basis of Presentation (Details) link:presentationLink link:calculationLink link:definitionLink 9955531 - Disclosure - Assets and Liabilities Held for Sale (Details) link:presentationLink link:calculationLink link:definitionLink 9955532 - Disclosure - Fair Value Disclosures - Financial Assets and Liabilities Accounted for at Fair Value on Recurring Basis (Details) link:presentationLink link:calculationLink link:definitionLink 9955533 - Disclosure - Fair Value Disclosures - Investments Measured at Fair Value Based on Net Asset Value Per Share (Details) link:presentationLink link:calculationLink link:definitionLink 9955534 - Disclosure - Fair Value Disclosures - Level 3 Rollforwards (Details) link:presentationLink link:calculationLink link:definitionLink 9955535 - Disclosure - Fair Value Disclosures - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955536 - Disclosure - Fair Value Disclosures - Quantitative Information about Significant Unobservable Inputs Used in Level 3 Fair Value Measurements (Details) link:presentationLink link:calculationLink link:definitionLink 9955537 - Disclosure - Fair Value Disclosures - Fair Value Option Gains (Losses) (Details) link:presentationLink link:calculationLink link:definitionLink 9955538 - Disclosure - Fair Value Disclosures - Contractual Principal Exceeds Fair Value for Loans and Other Receivables (Details) link:presentationLink link:calculationLink link:definitionLink 9955539 - Disclosure - Fair Value Disclosures - Fair Value of Loans and Other Receivables on Nonaccrual Status (Details) link:presentationLink link:calculationLink link:definitionLink 9955540 - Disclosure - Derivative Financial Instruments - Fair Value and Related Number of Derivative Contracts Categorized by Type of Derivative Contract (Details) link:presentationLink link:calculationLink link:definitionLink 9955541 - Disclosure - Derivative Financial Instruments - Unrealized and Realized Gains (Losses) on Derivative Contracts (Details) link:presentationLink link:calculationLink link:definitionLink 9955542 - Disclosure - Derivative Financial Instruments - Schedule of Accumulated Other Comprehensive Income (Loss) (Details) link:presentationLink link:calculationLink link:definitionLink 9955543 - Disclosure - Derivative Financial Instruments - Remaining Contract Maturity of Fair Value of OTC Derivative Assets and Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955544 - Disclosure - Derivative Financial Instruments - Fair Value of OTC Derivatives Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9955545 - Disclosure - Derivative Financial Instruments - External Credit Ratings of Underlyings or Referenced Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9955546 - Disclosure - Derivative Financial Instruments - Contingent Features (Details) link:presentationLink link:calculationLink link:definitionLink 9955547 - Disclosure - Collateralized Transactions - Collateral Pledged (Details) link:presentationLink link:calculationLink link:definitionLink 9955548 - 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Assets and Liabilities of Consolidated VIEs Prior to Consolidation (Details) link:presentationLink link:calculationLink link:definitionLink 9955555 - Disclosure - Variable Interest Entities - Variable Interests in Non-Consolidated Variable Interest Entities (Details) link:presentationLink link:calculationLink link:definitionLink 9955556 - Disclosure - Variable Interest Entities - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955557 - Disclosure - Variable Interest Entities - Detailed Investments Accounted for using PAM (Details) link:presentationLink link:calculationLink link:definitionLink 9955558 - Disclosure - Investments - Loans and Investments In Related Parties (Details) link:presentationLink link:calculationLink link:definitionLink 9955559 - Disclosure - Investments - Jefferies Finance - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955560 - Disclosure - Investments - Summary of Selected Financial Information for Jefferies Finance (Details) link:presentationLink link:calculationLink link:definitionLink 9955561 - Disclosure - Investments - Berkadia - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955562 - Disclosure - Investments - Summary of Selected Financial Information for Berkadia (Details) link:presentationLink link:calculationLink link:definitionLink 9955563 - Disclosure - Investments - Real Estate Investments - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955564 - Disclosure - Investments - Summary of Selected Financial Information For Real Estate Investments (Details) link:presentationLink link:calculationLink link:definitionLink 9955565 - Disclosure - Investments - JCP Fund V - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955566 - Disclosure - Investments - Summary of Selected Financial Information for JCP Fund V (Details) link:presentationLink link:calculationLink link:definitionLink 9955567 - Disclosure - Investments - Hildene - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955568 - Disclosure - Investments - Summary of Selected Financial information for Hildene (Details) link:presentationLink link:calculationLink link:definitionLink 9955569 - Disclosure - Investments - ApiJect - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955570 - Disclosure - Investments - Aircadia - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955571 - Disclosure - Credit Losses on Financial Assets Measured at Amortized Cost (Details) link:presentationLink link:calculationLink link:definitionLink 9955572 - Disclosure - Goodwill and Intangible Assets - Goodwill (Details) link:presentationLink link:calculationLink link:definitionLink 9955573 - Disclosure - Goodwill and Intangible Assets - Summary of Intangible Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9955574 - Disclosure - Goodwill and Intangible Assets - Amortization Expense (Details) link:presentationLink link:calculationLink link:definitionLink 9955575 - Disclosure - Revenues from Contracts with Customers - Components of Revenue (Details) link:presentationLink link:calculationLink link:definitionLink 9955576 - Disclosure - Revenues from Contracts with Customers - Disaggregation of Revenue (Details) link:presentationLink link:calculationLink link:definitionLink 9955577 - Disclosure - Revenues from Contracts with Customers - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955578 - Disclosure - Compensation Plans - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955579 - Disclosure - Compensation Plans - Nonvested Restricted Stock Units and Performance Based Units Activity (Details) link:presentationLink link:calculationLink link:definitionLink 9955580 - Disclosure - Compensation Plans - Compensation Cost (Details) link:presentationLink link:calculationLink link:definitionLink 9955581 - Disclosure - Compensation Plans - Remaining Unamortized Amounts (Details) link:presentationLink link:calculationLink link:definitionLink 9955582 - Disclosure - Borrowings - Short-Term Borrowings (Details) link:presentationLink link:calculationLink link:definitionLink 9955583 - Disclosure - Borrowings - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955584 - Disclosure - Borrowings - Maturities of Long-Term Debt (Details) link:presentationLink link:calculationLink link:definitionLink 9955585 - Disclosure - Total Equity - Schedule of Stock by Class (Details) link:presentationLink link:calculationLink link:definitionLink 9955586 - Disclosure - Total Equity - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955587 - Disclosure - Total Equity - Earnings per Share (Details) link:presentationLink link:calculationLink link:definitionLink 9955588 - Disclosure - Total Equity - Earnings Per Share Computation (Details) link:presentationLink link:calculationLink link:definitionLink 9955589 - Disclosure - Total Equity - Dividends (Details) link:presentationLink link:calculationLink link:definitionLink 9955590 - Disclosure - Total Equity - Summary of Accumulated Other Comprehensive Income (Loss), Net of Taxes (Details) link:presentationLink link:calculationLink link:definitionLink 9955591 - Disclosure - Total Equity - Accumulated Other Comprehensive Income (Loss) Reclassifications (Details) link:presentationLink link:calculationLink link:definitionLink 9955592 - Disclosure - Income Taxes - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955593 - Disclosure - Income Taxes - Schedule of Provision for Income Taxes (Details) link:presentationLink link:calculationLink link:definitionLink 9955594 - Disclosure - Commitments, Contingencies and Guarantees - Commitments and Contingencies (Details) link:presentationLink link:calculationLink link:definitionLink 9955595 - Disclosure - Commitments, Contingencies and Guarantees - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955596 - Disclosure - Commitments, Contingencies and Guarantees - Guarantees (Details) link:presentationLink link:calculationLink link:definitionLink 9955597 - Disclosure - Regulatory Requirements - Net Capital and Excess Net Capital (Details) link:presentationLink link:calculationLink link:definitionLink 9955598 - Disclosure - Regulatory Requirements - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955599 - Disclosure - Segment Reporting - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955600 - Disclosure - Segment Reporting - Net Revenues, Expenses and Total Assets by Segment (Details) link:presentationLink link:calculationLink link:definitionLink 9955601 - Disclosure - Segment Reporting - Reconciliation of Reportable Segment Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955602 - Disclosure - Segment Reporting - Assets by Reportable Business Segment (Details) link:presentationLink link:calculationLink link:definitionLink 9955603 - Disclosure - Segment Reporting - Net Revenues by Geographic Region (Details) link:presentationLink link:calculationLink link:definitionLink 9955604 - Disclosure - Related Party Transactions - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955605 - Disclosure - Related Party Transactions - Related Party Transactions (Details) link:presentationLink link:calculationLink link:definitionLink