0000001 - Document - Cover link:presentationLink link:calculationLink link:definitionLink 9952151 - Statement - Condensed Consolidated Balance Sheets (Unaudited) link:presentationLink link:calculationLink link:definitionLink 9952152 - Statement - Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952153 - Statement - Condensed Consolidated Income Statements (Unaudited) link:presentationLink link:calculationLink link:definitionLink 9952154 - Statement - Condensed Consolidated Statements of Comprehensive Income (Unaudited) link:presentationLink link:calculationLink link:definitionLink 9952155 - Statement - Condensed Consolidated Statements of Cash Flows (Unaudited) link:presentationLink link:calculationLink link:definitionLink 9952156 - Statement - Condensed Consolidated Statements of Cash Flows (Unaudited) (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952157 - Statement - Condensed Consolidated Statements of Stockholders’ Equity (Unaudited) link:presentationLink link:calculationLink link:definitionLink 9952158 - Disclosure - Basis of Presentation and Consolidation and Accounting Standards Adopted link:presentationLink link:calculationLink link:definitionLink 9952159 - Disclosure - Earnings per Share link:presentationLink link:calculationLink link:definitionLink 9952160 - Disclosure - Assets and Liabilities, at Fair Value link:presentationLink link:calculationLink link:definitionLink 9952161 - Disclosure - Financial Instruments with Off-Balance Sheet Risk and Concentrations of Credit Risk link:presentationLink link:calculationLink link:definitionLink 9952162 - Disclosure - Allowance for Doubtful Accounts link:presentationLink link:calculationLink link:definitionLink 9952163 - Disclosure - Physical Commodities Inventory link:presentationLink link:calculationLink link:definitionLink 9952164 - Disclosure - Goodwill link:presentationLink link:calculationLink link:definitionLink 9952165 - Disclosure - Intangible Assets link:presentationLink link:calculationLink link:definitionLink 9952166 - Disclosure - Credit Facilities link:presentationLink link:calculationLink link:definitionLink 9952167 - Disclosure - Securities and Commodity Financing Transactions link:presentationLink link:calculationLink link:definitionLink 9952168 - Disclosure - Commitments and Contingencies link:presentationLink link:calculationLink link:definitionLink 9952169 - Disclosure - Accumulated Other Comprehensive Loss, Net link:presentationLink link:calculationLink link:definitionLink 9952170 - Disclosure - Revenue from Contracts with Clients link:presentationLink link:calculationLink link:definitionLink 9952171 - Disclosure - Other Expenses link:presentationLink link:calculationLink link:definitionLink 9952172 - Disclosure - Income Taxes link:presentationLink link:calculationLink link:definitionLink 9952173 - Disclosure - Regulatory Capital Requirements link:presentationLink link:calculationLink link:definitionLink 9952174 - Disclosure - Acquisitions link:presentationLink link:calculationLink link:definitionLink 9952175 - Disclosure - Segment Analysis link:presentationLink link:calculationLink link:definitionLink 9955511 - Disclosure - Basis of Presentation and Consolidation and Accounting Standards Adopted (Policies) link:presentationLink link:calculationLink link:definitionLink 9955512 - Disclosure - Earnings per Share (Tables) link:presentationLink link:calculationLink link:definitionLink 9955513 - Disclosure - Assets and Liabilities, at Fair Value (Tables) link:presentationLink link:calculationLink link:definitionLink 9955514 - Disclosure - Financial Instruments with Off-Balance Sheet Risk and Concentrations of Credit Risk (Tables) link:presentationLink link:calculationLink link:definitionLink 9955515 - Disclosure - Allowance for Doubtful Accounts (Tables) link:presentationLink link:calculationLink link:definitionLink 9955516 - Disclosure - Physical Commodities Inventory (Tables) link:presentationLink link:calculationLink link:definitionLink 9955517 - Disclosure - Goodwill (Tables) link:presentationLink link:calculationLink link:definitionLink 9955518 - Disclosure - Intangible Assets (Tables) link:presentationLink link:calculationLink link:definitionLink 9955519 - Disclosure - Credit Facilities (Tables) link:presentationLink link:calculationLink link:definitionLink 9955520 - Disclosure - Securities and Commodity Financing Transactions (Tables) link:presentationLink link:calculationLink link:definitionLink 9955521 - Disclosure - Accumulated Other Comprehensive Loss, Net (Tables) link:presentationLink link:calculationLink link:definitionLink 9955522 - Disclosure - Revenue from Contracts with Clients (Tables) link:presentationLink link:calculationLink link:definitionLink 9955523 - Disclosure - Other Expenses (Tables) link:presentationLink link:calculationLink link:definitionLink 9955524 - Disclosure - Regulatory Capital Requirements (Tables) link:presentationLink link:calculationLink link:definitionLink 9955525 - Disclosure - Acquisitions (Tables) link:presentationLink link:calculationLink link:definitionLink 9955526 - Disclosure - Segment Analysis (Tables) link:presentationLink link:calculationLink link:definitionLink 9955527 - Disclosure - Basis of Presentation and Consolidation and Accounting Standards Adopted (Details) link:presentationLink link:calculationLink link:definitionLink 9955528 - Disclosure - Earnings per Share - Schedule of Reconciliation of Numerator and Denominator of Diluted Earnings Per Share (Details) link:presentationLink link:calculationLink link:definitionLink 9955529 - Disclosure - Earnings per Share - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955530 - Disclosure - Assets and Liabilities, at Fair Value - Schedule of Financial Assets and Liabilities Measured at Fair Value (Details) link:presentationLink link:calculationLink link:definitionLink 9955531 - Disclosure - Assets and Liabilities, at Fair Value - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955532 - Disclosure - Financial Instruments with Off-Balance Sheet Risk and Concentrations of Credit Risk - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955533 - Disclosure - Financial Instruments with Off-Balance Sheet Risk and Concentrations of Credit Risk - Schedule of Gross Derivative Assets and Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955534 - Disclosure - Financial Instruments with Off-Balance Sheet Risk and Concentrations of Credit Risk - Schedule of Fair Values of Derivative Instruments Designated for Hedging Held (Details) link:presentationLink link:calculationLink link:definitionLink 9955535 - Disclosure - Financial Instruments with Off-Balance Sheet Risk and Concentrations of Credit Risk - Schedule of Notional Values For Derivatives Instrument (Details) link:presentationLink link:calculationLink link:definitionLink 9955536 - Disclosure - Financial Instruments with Off-Balance Sheet Risk and Concentrations of Credit Risk - Schedule of Income Statement Effects of Derivative Instruments (Details) link:presentationLink link:calculationLink link:definitionLink 9955537 - Disclosure - Financial Instruments with Off-Balance Sheet Risk and Concentrations of Credit Risk - Schedule of Accumulated Other Comprehensive Income Effects of Derivative Instruments (Details) link:presentationLink link:calculationLink link:definitionLink 9955538 - Disclosure - Financial Instruments with Off-Balance Sheet Risk and Concentrations of Credit Risk - Schedule of Net Gains/(Losses) from Derivative Contracts (Details) link:presentationLink link:calculationLink link:definitionLink 9955539 - Disclosure - Allowance for Doubtful Accounts - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955540 - Disclosure - Allowance for Doubtful Accounts - Schedule of Allowance for Doubtful Accounts (Details) link:presentationLink link:calculationLink link:definitionLink 9955541 - Disclosure - Physical Commodities Inventory (Details) link:presentationLink link:calculationLink link:definitionLink 9955542 - Disclosure - Goodwill - Schedule of Goodwill Allocated to Operating Segments (Details) link:presentationLink link:calculationLink link:definitionLink 9955543 - Disclosure - Goodwill - Schedule of Goodwill Reconciliation (Details) link:presentationLink link:calculationLink link:definitionLink 9955544 - Disclosure - Intangible Assets - Schedule of Gross and Net Carrying Values of Intangible Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9955545 - Disclosure - Intangible Assets - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955546 - Disclosure - Intangible Assets - Schedule of Expected Amortization Expense (Details) link:presentationLink link:calculationLink link:definitionLink 9955547 - Disclosure - Credit Facilities - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955548 - Disclosure - Credit Facilities - Schedule of Debt (Details) link:presentationLink link:calculationLink link:definitionLink 9955549 - Disclosure - Securities and Commodity Financing Transactions - Schedule of Collateral Maturities of Gross Obligations (Details) link:presentationLink link:calculationLink link:definitionLink 9955550 - Disclosure - Securities and Commodity Financing Transactions - Schedule of Underlying Collateral Types of Gross Obligations (Details) link:presentationLink link:calculationLink link:definitionLink 9955551 - Disclosure - Securities and Commodity Financing Transactions - Schedule of Netting of Securities Purchased Under Agreements (Details) link:presentationLink link:calculationLink link:definitionLink 9955552 - Disclosure - Securities and Commodity Financing Transactions - Schedule of Fair Values of Collateral Pledged, Received and Repledged (Details) link:presentationLink link:calculationLink link:definitionLink 9955553 - Disclosure - Commitments and Contingencies (Details) link:presentationLink link:calculationLink link:definitionLink 9955554 - Disclosure - Accumulated Other Comprehensive Loss, Net (Details) link:presentationLink link:calculationLink link:definitionLink 9955555 - Disclosure - Revenue from Contracts with Clients - Schedule of Revenue from Contracts with Clients (Details) link:presentationLink link:calculationLink link:definitionLink 9955556 - Disclosure - Revenue from Contracts with Clients - Schedule of Principal Gains, Net Related To Income and Expense of Dividends (Details) link:presentationLink link:calculationLink link:definitionLink 9955557 - Disclosure - Other Expenses (Details) link:presentationLink link:calculationLink link:definitionLink 9955558 - Disclosure - Income Taxes (Details) link:presentationLink link:calculationLink link:definitionLink 9955559 - Disclosure - Regulatory Capital Requirements - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955560 - Disclosure - Regulatory Capital Requirements - Schedule of Subsidiaries with Minimum Regulatory Requirements (Details) link:presentationLink link:calculationLink link:definitionLink 9955561 - Disclosure - Acquisitions - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955562 - Disclosure - Acquisitions - R.J. O’Brien - Schedule of Aggregate Merger Consideration (Details) link:presentationLink link:calculationLink link:definitionLink 9955563 - Disclosure - Acquisitions - R.J. O'Brien - Schedule of Operating Revenue and Net Income (Details) link:presentationLink link:calculationLink link:definitionLink 9955564 - Disclosure - Acquisitions - R.J. O’Brien - Schedule of Unaudited Pro Forma Financial Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955565 - Disclosure - Segment Analysis - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955566 - Disclosure - Segment Analysis - Schedule of Segment Reporting Information Examples (Details) link:presentationLink link:calculationLink link:definitionLink