Intangible Assets [Abstract]
Intangible Assets [Abstract]
Intangible Assets Disclosure [Text Block]
Intangible Assets Disclosure [Text Block]
Earnings Per Share [Abstract]
Schedule of Calculation of Numerator and Denominator in Earnings Per Share [Table Text Block]
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
Physical Commodities Inventory [Abstract]
Physical Commodities Inventory [Abstract]
Inventory Disclosure [Text Block]
Inventory Disclosure [Text Block]
Commitments and Contingencies [Abstract]
Commitments and Contingencies [Abstract]
Commitments and Contingencies Disclosure [Text Block]
Commitments and Contingencies Disclosure [Text Block]
Receivables [Abstract]
Statement [Table]
Statement [Table]
Segments [Axis]
Segments [Axis]
Segments [Domain]
Segments [Domain]
Commercial Hedging [Member]
Commercial Hedging [Member]
Commercial Hedging [Member]
Securities [Member]
Securities Segment [Member]
Securities Segment [Member]
Commercial Hedging [Member]
Commodity and Risk Management [Member]
Commodity and Risk Management [Member]
Physical Commodities [Member]
Other Segment [Member]
Other Segment [Member]
Statement [Line Items]
Statement [Line Items]
Allowance for Doubtful Accounts Receivable, Period Increase (Decrease)
Allowance for Doubtful Accounts Receivable, Period Increase (Decrease)
Provision for Doubtful Accounts
Provision for Doubtful Accounts
Schedule of Indefinite-Lived Intangible Assets [Table]
Schedule of Indefinite-Lived Intangible Assets [Table]
Indefinite-lived Intangible Assets by Major Class [Axis]
Indefinite-lived Intangible Assets [Axis]
Indefinite-lived Intangible Assets, Major Class Name [Domain]
Indefinite-lived Intangible Assets, Major Class Name [Domain]
Trade Names [Member]
Trade Names [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived Intangible Assets [Line Items]
Amortization of Intangible Assets
Amortization of Intangible Assets
Gross Finite and Indefinite-Lived Intangible Assets
Gross Finite and Indefinite-Lived Intangible Assets
Gross amount of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. In addition, it includes the carrying amount of assets (excluding financial assets) that lack physical substance, excluding goodwill, having a projected indefinite period of benefit.
Finite and Indefinited-Lived Accumulated Amortization and Impairment Charges
Finite and Indefinited-Lived Accumulated Amortization and Impairment Charges
Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. In addition, it includes impairment recognized during the life of the intangible that results from the write-down of indefinite-lived intangible assets after comparing the implied fair value of reporting unit indefinite-lived intangible assets with the carrying amount of that indefinite-lived intangible assets, which are assessed at least annually for impairment.
Intangible Assets, Net (Excluding Goodwill)
Intangible Assets, Net (Excluding Goodwill)
Assets and Liabilities, at Fair Value [Abstract]
Assets and Liabilities, at Fair Value [Abstract]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table]
Asset Class [Axis]
Asset Class [Axis]
Fair Value by Asset Class [Domain]
Asset Class [Domain]
Common stock and American Depositary Receipts (ADRs) [Member]
Common stock and American Depositary Receipts (ADRs) [Member]
Common stock and American Depositary Receipts (ADRs) [Member]
Corporate Debt Securities [Member]
Corporate Debt Securities [Member]
Liability Class [Axis]
Liability Class [Axis]
Fair Value by Liability Class [Domain]
Fair Value by Liability Class [Domain]
Contingent Consideration [Member]
Contingent Consideration [Member]
Contingent consideration includes remeasurement of contingent liabilities related to business combinations accounted for in accordance with the provisions of the Business Combinations Topic of the ASC.
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Rollforward of Level 3 Securities [Roll Forward]
Rollforward of Level 3 Securities [Roll Forward]
Rollforward of Level 3 Securities [Roll Forward]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Period Increase (Decrease)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Period Increase (Decrease)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value
Rollforward of Level 3 Liabilities [Roll Forward]
Rollforward of Level 3 Liabilities [Roll Forward]
Rollforward of Level 3 Liabilities [Roll Forward]
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Period Increase (Decrease)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Period Increase (Decrease)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Transfers, Net
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Transfers, Net
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value
Earnings Per Share, Potentially Dilutive Securities
Earnings Per Share, Policy [Policy Text Block]
Accumulated Other Comprehensive Income (Loss) [Abstract]
Accumulated Other Comprehensive Income (Loss) [Abstract]
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
Fair Value Measurements, Recurring and Nonrecurring [Table]
Fair Value Measurements, Recurring and Nonrecurring [Table]
Measurement Frequency [Axis]
Measurement Frequency [Axis]
Fair Value, Measurement Frequency [Domain]
Fair Value, Measurement Frequency [Domain]
Fair Value, Measurements, Recurring [Member]
Fair Value, Measurements, Recurring [Member]
Fair Value, Hierarchy [Axis]
Fair Value, Hierarchy [Axis]
Fair Value, Measurements, Fair Value Hierarchy [Domain]
Fair Value Hierarchy [Domain]
Fair Value, Inputs, Level 1 [Member]
Fair Value, Inputs, Level 1 [Member]
Fair Value, Inputs, Level 2 [Member]
Fair Value, Inputs, Level 2 [Member]
Fair Value, Inputs, Level 3 [Member]
Fair Value, Inputs, Level 3 [Member]
Derivative Netting Adjustment [Axis]
Derivative Netting Adjustment [Axis]
Derivative Netting Axis.
Derivative Netting [Domain]
Derivative Netting [Domain]
Derivative Netting [Domain]
Counterparty And Cash Collateral Netting Adjustment [Member]
Counterparty And Cash Collateral Netting Adjustment [Member]
Counterparty And Cash Collateral Netting Adjustment [Member]
Cash and Cash Equivalents [Axis]
Cash and Cash Equivalents [Axis]
Cash and Cash Equivalents [Domain]
Cash and Cash Equivalents [Domain]
Certificates of Deposit [Member]
Certificates of Deposit [Member]
Securities and other assets segregated under federal and other regulations [Axis]
Securities and other assets segregated under federal and other regulations [Axis]
Securities and other assets segregated under federal and other regulations [Axis]
Securities and other assets segregated under federal and other regulations [Domain]
Securities and other assets segregated under federal and other regulations [Domain]
Securities and other assets segregated under federal and other regulations [Domain]
Commodities warehouse receipts [Member]
Commodities warehouse receipts [Member]
Commodities warehouse receipts [Member]
US Government Debt Securities [Member]
US Government Debt Securities [Member]
Deposits and receivables from exchange clearing organizations [Axis]
Deposits and receivables from exchange clearing organizations [Axis]
Deposits and receivables from exchange clearing organizations [Axis]
Deposits and receivables from exchange clearing organizations [Domain]
Deposits and receivables from exchange clearing organizations [Domain]
Deposits and receivables from exchange clearing organizations [Domain]
Money Market Funds [Member]
Money Market Funds [Member]
Derivative [Member]
Derivative [Member]
Deposits and receivables from broker-dealers, clearing organizations and counterparties [Axis]
Deposits and receivables from broker-dealers, clearing organizations and counterparties [Axis]
Deposits and receivables from broker-dealers, clearing organizations and counterparties [Axis]
Deposits and receivables from broker-dealers, clearing organizations and counterparties [Domain]
Deposits and receivables from broker-dealers, clearing organizations and counterparties [Domain]
Deposits and receivables from broker-dealers, clearing organizations and counterparties [Domain]
TBA and forward settling securities [Member]
TBA and forward settling securities [Member]
TBA and forward settling securities [Member]
Security Owned and Sold, Not yet Purchased, at Fair Value [Axis]
Security Owned and Sold, Not yet Purchased, at Fair Value [Axis]
Security Owned and Sold, Not yet Purchased Fair Value, Security Name [Domain]
Security Owned and Sold, Not yet Purchased Fair Value, Security Name [Domain]
Exchangeable foreign ordinary equities and ADRs [Member]
Exchangeable foreign ordinary equities and ADRs [Member]
Exchangeable foreign ordinary equities and ADRs [Member]
Foreign Government Debt Securities [Member]
Foreign Government Debt Securities [Member]
Collateralized Mortgage Backed Securities [Member]
Collateralized Mortgage Backed Securities [Member]
Commodities leases [Member]
Commodities leases and unpriced positions [Member]
Commodities leases and unpriced positions [Member]
Exchange firm common stock [Member]
Exchange firm common stock [Member]
Exchange firm common stock [Member]
Mutual funds and other [Member]
Mutual funds and other [Member]
Mutual funds and other [Member]
Physical commodities inventory [Axis]
Physical commodities inventory [Axis]
Physical commodities inventory [Axis]
Physical commodities inventory [Domain]
Physical commodities inventory [Domain]
[Domain] for Physical commodities inventory [Axis]
Physical commodities inventory - precious metals [Member]
Physical commodities inventory - precious metals [Member]
Physical commodities inventory - precious metals
Accounts payable and other accrued liabilities (including contingent liabilities) [Axis]
Accounts payable and other accrued liabilities (including contingent liabilities) [Axis]
Accounts payable and other accrued liabilities (including contingent liabilities) [Axis]
Accounts Payable and Other Accrued Liabilities [Domain]
Accounts Payable and Other Accrued Liabilities [Domain]
Accounts Payable and Other Accrued Liabilities [Domain]
Payables to broker-dealers, clearing organizations and counterparties [Axis]
Payables to broker-dealers, clearing organizations and counterparties [Axis]
Payables to broker-dealers, clearing organizations and counterparties [Axis]
Payables to broker-dealers, clearing organizations and counterparties [Domain]
Payables to broker-dealers, clearing organizations and counterparties [Domain]
[Domain] for Payables to broker-dealers, clearing organizations and counterparties [Axis]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure
Cash and Cash Equivalents, Fair Value Disclosure
Cash and Securities Segregated under Federal and Other Regulations
Cash and Securities Segregated under Federal and Other Regulations
Receivables from Clearing Organizations
Receivables from Clearing Organizations
Receivables from Brokers-Dealers and Clearing Organizations
Receivables from Brokers-Dealers and Clearing Organizations
Financial Instruments, Owned, at Fair Value
Financial Instruments, Owned, at Fair Value
Physical commodities inventory
Inventory, Gross
Assets, Fair Value Disclosure
Assets, Fair Value Disclosure
Accounts Payable and Other Accrued Liabilities
Accounts Payable and Other Accrued Liabilities
Payables to Broker-Dealers and Clearing Organizations
Payables to Broker-Dealers and Clearing Organizations
Financial Instruments Sold, Not yet Purchased, at Fair Value
Financial Instruments Sold, Not yet Purchased, at Fair Value
Liabilities, Fair Value Disclosure
Financial and Nonfinancial Liabilities, Fair Value Disclosure
Receivables from customers and notes receivable, net [Abstract]
Receivables from customers and notes receivable, net [Abstract]
Allowance Notes Receivable
Allowance Notes Receivable
A valuation allowance relating to a written agreement to receive money (at a specified future date(s), consisting of principal as well as any accrued interest) for the portion that is expected to be uncollectible.
Credit Facilities [Abstract]
Credit Facilities [Abstract]
Schedule of Debt [Table Text Block]
Schedule of Debt [Table Text Block]
Commodity and Other Repurchase Agreements [Abstract]
Commodity and Other Repurchase Agreements [Abstract]
Legal Entity [Axis]
Legal Entity [Axis]
Entity [Domain]
Entity [Domain]
G.X. Clarke (INTL FCStone Partners) [Member]
G.X. Clarke (INTL FCStone Partners) [Member]
Acquisition of G.X. Clarke, which was subsequently named INTL FCStone Partners.
Sterne Agee [Member]
Sterne Agee [Member]
Sterne Agee [Member]
Fair Value of Securities Received as Collateral that Can be Resold or Repledged
Fair Value of Securities Received as Collateral that Can be Resold or Repledged
Fair Value of Securities Received as Collateral that Have Been Resold or Repledged
Fair Value of Securities Received as Collateral that Have Been Resold or Repledged
Financing Receivables, net - Sales/Repurchase Agreements
Sales Repurchase Agreements
Financing Receivables, net - Sales/Repurchase Agreements
Financial Instruments Owned and Pledged as Collateral, Amount Eligible to be Repledged by Counterparty
Financial Instruments Owned and Pledged as Collateral, Amount Eligible to be Repledged by Counterparty
Securities Sold under Agreements to Repurchase, Fair Value of Collateral
Securities Sold under Agreements to Repurchase, Fair Value of Collateral
Trading Securities Pledged as Collateral
Financial Instruments Owned and Pledged as Collateral, Amount Not Eligible to be Repledged by Counterparty
Pledged Financial Instruments, Not Separately Reported, Securities for Repurchase Agreements
Pledged Financial Instruments, Not Separately Reported, Securities for Repurchase Agreements
Basis of Presentation and Consolidation [Abstract]
Basis of Presentation and Consolidation [Abstract]
Basis of Accounting, Policy [Policy Text Block]
Basis of Accounting, Policy [Policy Text Block]
Consolidation, Policy [Policy Text Block]
Consolidation, Policy [Policy Text Block]
Fiscal Period, Policy [Policy Text Block]
Fiscal Period, Policy [Policy Text Block]
Use of Estimates, Policy [Policy Text Block]
Use of Estimates, Policy [Policy Text Block]
Securities Borrowed and Loaned Policy [Policy Text Block]
Securities Borrowed and Loaned Policy [Policy Text Block]
New Accounting Pronouncements, Policy [Policy Text Block]
New Accounting Pronouncements, Policy [Policy Text Block]
Financial Instruments with Off-Balance Sheet Risk and Concentrations of Credit Risk [Abstract]
Financial Instruments with Off-Balance Sheet Risk and Concentrations of Credit Risk [Abstract]
Derivative Instruments, Gain (Loss), by Derivative Instrument Risk [Table]
Derivative Instruments, Gain (Loss) [Table]
Derivative Instrument [Axis]
Derivative Instrument [Axis]
Derivative Contract Type [Domain]
Derivative Contract [Domain]
Commodity Contract [Member]
Commodity Contract [Member]
Foreign Exchange Forward [Member]
Foreign Exchange Forward [Member]
Interest Rate Contract [Member]
Interest Rate Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Income, Net
Derivative, Gain (Loss) on Derivative, Net
Goodwill [Abstract]
Goodwill [Abstract]
Goodwill Disclosure [Text Block]
Goodwill Disclosure [Text Block]
Business Combinations [Abstract]
Business Combination Disclosure [Text Block]
Business Combination Disclosure [Text Block]
Business Acquisition [Axis]
Business Acquisition [Axis]
Business Acquisition, Acquiree [Domain]
Business Acquisition, Acquiree [Domain]
ICAP [Member] [Member]
ICAP [Member] [Member]
ICAP [Member]
Business Combination, Consideration Transferred
Business Combination, Consideration Transferred
Finite-Lived Intangible Asset, Useful Life
Finite-Lived Intangible Asset, Useful Life
Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]
Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block]
Condensed Consolidated Statement of Other Comprehensive Income (Loss) [Abstract]
Condensed Consolidated Statement of Other Comprehensive Income (Loss) [Abstract]
Net income
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest
Other comprehensive income (loss), net of tax:
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Foreign currency translation adjustment
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax
Pension liabilities adjustment
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax
Reclassification of adjustments included in net income [Abstract]
Reclassification of adjustment for gains included in net income [Abstract]
Reclassification of adjustment for gains included in net income [Abstract]
Periodic pension costs (included in compensation and benefits)
Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, before Tax
Reclassification adjustment for gains included in net income
Reclassification adjustments for gains (losses) included in net income
Reclassification adjustments for gains (losses) included in net income
Other comprehensive income (loss)
Other Comprehensive Income (Loss), Net of Tax
Comprehensive income
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest
Other Expenses [Abstract]
Other Expenses [Text Block]
Other Income and Other Expense Disclosure [Text Block]
Schedule of Finite and Indefinite-Lived Intangible Assets [Table Text Block]
Schedule of Finite and Indefinite-Lived Intangible Assets [Table Text Block]
Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life or exist in perpetuity, by either major class or business segment.
Schedule of Expected Amortization Expense [Table Text Block]
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]
Allowance for Doubtful Accounts Receivable
Allowance for Doubtful Accounts Receivable
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]
Tabular disclosure of the fair value measurement of assets and liabilities 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 (loss), 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, issues, 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.
Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table]
Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table]
Exchange-traded Commodity Contracts [Member]
Exchange-traded Commodity Contracts [Member]
Exchange-traded Commodity Contracts [Member]
Over the Counter (OTC) Commodity Contracts [Member]
Over the Counter (OTC) Commodity Contracts [Member]
Over the Counter (OTC) Commodity Contracts [Member]
Over the Counter (OTC) Foreign Exchange Contracts [Member]
Over the Counter (OTC) Foreign Exchange Contracts [Member]
Over the Counter (OTC) Foreign Exchange Contracts [Member]
Exchange-traded interest rate contracts [Member]
Exchange-traded interest rate contracts [Member]
Exchange-traded interest rate contracts [Member]
Equity Contract [Member]
Equity Contract [Member]
Balance Sheet Location [Axis]
Balance Sheet Location [Axis]
Balance Sheet Location [Domain]
Balance Sheet Location [Domain]
Deposits and Receivables from Exchange Clearing Organizations [Member]
Deposits and Receivables from Exchange Clearing Organizations [Member]
Deposits and Receivables from Exchange Clearing Organizations [Member]
Deposits and receivables from broker-dealers, clearing organizations and counterparties [Member]
Deposits and Receivables from Broker-dealers, clearing organizations and counterparties [Member]
Deposits and Receivables from Broker-dealers, clearing organizations and counterparties [Member]
Financial instruments owned [Member]
Financial instruments owned [Member]
Financial instruments owned [Member]
Payable to broker-dealers, clearing organizations and counterparties [Member]
Payable to broker-dealers, clearing organizations and counterparties [Member]
Payable to broker-dealers, clearing organizations and counterparties [Member]
Financial instrument sold, not yet purchased [Member]
Financial instrument sold, not yet purchased [Member]
Financial instrument sold, not yet purchased [Member]
Derivatives, Fair Value [Line Items]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset
Derivative Asset, Fair Value, Gross Asset
Derivative Liability, Fair Value, Gross Liability
Derivative Liability, Fair Value, Gross Liability
Derivative Asset, Fair Value, Amount Offset Against Collateral
Derivative Asset, Fair Value, Amount Offset Against Collateral
Derivative Liability, Fair Value, Amount Offset Against Collateral
Derivative Liability, Fair Value, Amount Offset Against Collateral
Derivative, Fair Value, Net
Derivative, Fair Value, Net
Earnings Per Share [Text Block]
Earnings Per Share [Text Block]
Condensed Consolidated Balance Sheets [Abstract]
Condensed Consolidated Balance Sheets [Abstract]
ASSETS
Assets [Abstract]
Cash and cash equivalents
Cash and Cash Equivalents, at Carrying Value
Cash, securities and other assets segregated under federal and other regulations (including $247.6 and $618.8 at fair value at March 31, 2017 and September 30, 2016, respectively)
Securities purchased under agreements to resell
Securities Purchased under Agreements to Resell
Securities Borrowed
Securities Borrowed
Deposits with and receivables from:
Receivables from Brokers-Dealers and Clearing Organizations [Abstract]
Exchange-clearing organizations (including $636.5 and $868.5 at fair value at March 31, 2017 and September 30, 2016, respectively)
Broker-dealers, clearing organizations and counterparties (including $34.7 and $(15.2) at fair value at March 31, 2017 and September 30, 2016, respectively)
Receivables from customers, net
Accounts Receivable, Net
Notes receivable, net
Financing Receivable, Net
Income taxes receivable
Income Taxes Receivable
Financial instruments owned, at fair value (includes securities pledged as collateral that can be sold or repledged of $324.6 and $47.2 at March 31, 2017 and September 30, 2016, respectively)
Physical commodities inventory, net (including $117.8 and $71.2 at fair value at March 31, 2017 and September 30, 2016, respectively)
Deferred income taxes, net
Deferred Tax Assets, Net
Property and equipment, net
Property, Plant and Equipment, Net
Goodwill and intangible assets, net
Goodwill and intangible assets, net
Amount combines the carrying amounts for goodwill and finite- and indefinite-lived intangible assets. Goodwill represents the 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 acquire, adjusted for any amortization recognized prior to 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.
Indefinite-lived intangible assets represent the carrying amount of intangible assets, excluding goodwill, which have a projected indefinite period of benefit (hence are not amortized), allocated to the reportable segment. These assets, acquired either individually or as part of a group of assets, in either an asset acquisition or business combination, are assessed at least annually for impairment. Examples may include trade secrets, contractual rights, trade names, and licensing agreements.
Finite-lived intangible assets are the aggregate sum of gross carrying value of a major finite-lived intangible asset class, less accumulated amortization and any impairment charges. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company.
Other assets
Prepaid Expense and Other Assets
Total assets
Assets
LIABILITIES AND STOCKHOLDERS' EQUITY
Liabilities and Equity [Abstract]
Liabilities:
Liabilities [Abstract]
Accounts payable and other accrued liabilities (including $0.9 and $0.8 at fair value at March 31, 2017 and September 30, 2016, respectively)
Payables to:
Payables and Accruals [Abstract]
Customers
Payables to Customers
Broker-dealers, clearing organizations and counterparties (including $9.8 and $3.5 at fair value at March 31, 2017 and September 30, 2016), respectively
Lenders under loans
Long-term Line of Credit
Senior unsecured notes
Senior Notes
Income taxes payable
Accrued Income Taxes
Payables under repurchase agreements
Securities Sold under Agreements to Repurchase
Securities Loaned
Securities Loaned
Financial instruments sold, not yet purchased, at fair value
Total liabilities
Liabilities
Commitments and contingencies (Note 11)
Commitments and Contingencies
Stockholders' Equity:
Equity [Abstract]
Preferred stock, $0.01 par value. Authorized 1,000,000 shares; no shares issued or outstanding
Preferred Stock, Value, Outstanding
Common stock, $0.01 par value. Authorized 30,000,000 shares; 20,781,686 issued and 18,659,729 outstanding at March 31, 2017 and 20,557,175 issued and 18,435,218 outstanding at September 30, 2016
Common Stock, Value, Outstanding
Common stock in treasury, at cost - 2,121,957 shares at March 31, 2017 and September 30, 2016
Treasury Stock, Value
Additional paid-in capital
Additional Paid in Capital
Retained earnings
Retained Earnings (Accumulated Deficit)
Accumulated other comprehensive loss, net
Accumulated Other Comprehensive Income (Loss), Net of Tax
Total stockholders' equity
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest
Total liabilities and stockholders' equity
Liabilities and Equity
Condensed Consolidated Statement of Shareholders’ Equity [Abstract]
Condensed Consolidated Statement of Shareholders’ Equity [Abstract]
Statement, Equity Components [Axis]
Equity Components [Axis]
Equity Component [Domain]
Equity Component [Domain]
Common Stock [Member]
Common Stock [Member]
Treasury Stock [Member]
Treasury Stock [Member]
Additional Paid-in Capital [Member]
Additional Paid-in Capital [Member]
Retained Earnings [Member]
Retained Earnings [Member]
Accumulated Other Comprehensive Loss [Member]
AOCI Attributable to Parent [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balances as of beginning of period
Net income
Other comprehensive loss
Exercise of stock options
Proceeds from Stock Options Excercised (including income tax benefit)
Proceeds from Stock Options Excercised (including income tax benefit)
Share-based Compensation
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition
Balances as of end of period
Schedule of Business Acquisitions by Acquisition, Contingent Consideration [Table]
Schedule of Business Acquisitions by Acquisition, Contingent Consideration [Table]
Business Acquisition, Contingent Consideration [Line Items]
Business Acquisition, Contingent Consideration [Line Items]
Business Combination, Contingent Consideration, Liability
Business Combination, Contingent Consideration, Liability
Change in fair value of contingent consideration for acquisitions
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability
Present Value of Estimated Total Purchase Price
Present Value of Estimated Total Purchase Price
Present Value of Estimated Total Purchase Price - The present value of the estimated total purchase price, including contingent consideration.
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High
Condensed Consolidated Balance Sheet Parentheticals [Abstract]
Condensed Consolidated Balance Sheet Parentheticals [Abstract]
Balance Sheet Parentheticals [Abstract]
Securities and other assets segregated, fair value
Securities and other assets segregated, fair value
Securities and other assets segregated, fair value
Dep and rec -exch clear org - fair value
Deposits and receivables from exchange clearing orgs, fair value
Deposits and receivables from exchange clearing orgs, fair value
Dep and rec -b/d - fair value
Deposits and receivables from bds and counterparties at fair value
Deposits and receivables from b/ds and counterparties at fair value
Physical commodities inventory at fair value
Physical commodities inventory at fair value
Physical commodities inventory at fair value - precious metals
Collateral that can be sold or repledged
Accounts pay and other accrued - fair value
Accounts payable and other accrued liabilities - contingent consideration, fair value
Accounts payable and other accrued liabilities - contingent consideration, fair value
Payables to b/d - fair value
Payables to b/ds and counterparties at fair value
Payables to b/ds and counterparties at fair value
Preferred stock - par value
Preferred Stock, Par or Stated Value Per Share
Preferred stock - authorized
Preferred Stock, Shares Authorized
Preferred stock - issued
Preferred Stock, Shares Issued
Preferred stock - outstanding
Preferred Stock, Shares Outstanding
Common stock - par value
Common Stock, Par or Stated Value Per Share
Common stock - authorized
Common Stock, Shares Authorized
Common stock - issued
Common Stock, Shares, Issued
Common stock - outstanding
Common Stock, Shares, Outstanding
Treasury stock - shares
Treasury Stock, Shares
Inventory, Current [Table]
Inventory, Current [Table]
Inventory [Line Items]
Inventory [Line Items]
Physical Ag & Energy(1)
Agricultural Related Inventory
Precious metals - held by non-broker-dealer subsidiaries(3)
Finished commodities
Inventory, Finished Goods, Net of Reserves
Physical commodities inventory
Inventory, Net
Schedule of Goodwill [Table]
Schedule of Goodwill [Table]
Global Payments [Member]
Foreign Exchange Segment [Member]
Foreign Exchange Segment [Member]
Goodwill [Line Items]
Goodwill [Line Items]
Goodwill
Goodwill
FCStone LLC [Member]
FCStone LLC [Member]
FCStone LLC [Member]
Finite-Lived Intangible Assets by Major Class [Axis]
Finite-Lived Intangible Assets by Major Class [Axis]
Finite-Lived Intangible Assets, Major Class Name [Domain]
Finite-Lived Intangible Assets, Major Class Name [Domain]
Finite-Lived Trade Names, Gross
Finite-Lived Trade Names, Gross
Finite-Lived Intangible Assets, Amortization Expense, Maturity Schedule [Abstract]
Finite-Lived Intangible Assets, Amortization Expense, Maturity Schedule [Abstract]
Fiscal 2016 (remaining nine months)
Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year
Fiscal 2017
Finite-Lived Intangible Assets, Amortization Expense, Year Two
Fiscal 2018
Finite-Lived Intangible Assets, Amortization Expense, Year Three
Fiscal 2019
Finite-Lived Intangible Assets, Amortization Expense, Year Four
Fiscal 2020 and thereafter
Finite-Lived Intangible Assets, Amortization Expense, Year Five
Finite-Lived Intangible Assets, Net
Finite-Lived Intangible Assets, Net
Inventory Disclosure [Abstract]
Schedule of Inventory, Current [Table Text Block]
Schedule of Inventory, Current [Table Text Block]
Debt Disclosure [Text Block]
Debt Disclosure [Text Block]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table]
Income Statement Location [Axis]
Income Statement Location [Axis]
Income Statement Location [Domain]
Income Statement Location [Domain]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Accretion Expense
Accretion Expense
General Insurance Expense
General Insurance Expense
Advertising Expense
Advertising Expense
Technology Services Costs
Technology Services Costs
Supplies and Postage Expense
Supplies and Postage Expense
Clearance Fees
Clearance Fees
Taxes, Miscellaneous
Taxes, Miscellaneous
Other Expenses
Other Expenses
Other Cost and Expense, Operating
Operating Costs and Expenses
Total Level 3 Assets
Total Level 3 Assets
Total Level 3 Assets
Level 3 assets for which the company bears economic exposure
Level 3 assets for which the company bears economic exposure
Level 3 assets for which the company bears economic exposure
Assets
Total level 3 assets as a percentage of total assets
Total level 3 assets as a percentage of total assets
Total level 3 assets as a percentage of total assets
Level 3 assets for which the company bears economic exposure as a percertange of total assets
Level 3 assets for which the company bears economic exposure as a percertange of total assets
Level 3 assets for which the company bears economic exposure as a percertange of total assets
Total level 3 assets as a percentage of total financial assets at fair value
Total level 3 assets as a percentage of total financial assets at fair value
Total level 3 assets as a percentage of total financial assets at fair value
Suriwongse Debt Investment Balance
Suriwongse Debt Investment Balance
Suriwongse Debt Investment Balance - Investment in Suriwongse hotel
Segment Analysis [Abstract]
Segment Analysis [Abstract]
Schedule of Segment Reporting Information, by Segment [Table Text Block]
Schedule of Segment Reporting Information, by Segment [Table Text Block]
Condensed Consolidated Cash Flows Statements [Abstract]
Condensed Consolidated Cash Flows Statements [Abstract]
Statement, Scenario [Axis]
Scenario [Axis]
Scenario, Unspecified [Domain]
Scenario, Unspecified [Domain]
Cash flows from operating activities:
Net Cash Provided by (Used in) Operating Activities [Abstract]
Adjustments to reconcile net income to net cash (used in) provided by operating activities:
Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]
Depreciation and amortization
Depreciation, Depletion and Amortization, Nonproduction
Bad debts
Tangible Asset Impairment Charges
Deferred income taxes
Deferred Income Tax Expense (Benefit)
Amortization of debt issuance costs and debt discount
Amortization of Debt Issuance Costs and Discounts
Amortization of stock-based compensation
Share-based Compensation
Loss on sale of property and equipment
Gain (Loss) on Disposition of Property Plant Equipment
Changes in operating assets and liabilities, net:
Increase (Decrease) in Other Operating Assets and Liabilities, Net [Abstract]
Cash, securities and other assets segregated under federal and other regulations
Increase (Decrease) in Operating Assets
Securities purchased under agreements to resell
Increase (Decrease) in Receivables under Repurchase Agreements
Increase (Decrease) in Securities Borrowed
Increase (Decrease) in Securities Borrowed
Deposits and receivables from exchange-clearing organizations
Increase (Decrease) in Deposits
Deposits and receivables from broker-dealers, clearing organizations, and counterparties
Increase (Decrease) in Receivables from Brokers-Dealers and Clearing Organizations
Receivables from customers, net
Increase (Decrease) in Accounts Receivable
Notes receivable, net
Increase (Decrease) in Accounts and Notes Receivable
Income taxes receivable
Increase (Decrease) in Income Taxes Receivable
Financial instruments owned, at fair value
Increase (Decrease) in Financial Instruments Used in Operating Activities
Physical commodities inventory
Increase (Decrease) in Inventories
Other assets
Increase (Decrease) in Prepaid Expense and Other Assets
Accounts payable and other accrued liabilities
Increase (Decrease) in Accounts Payable and Accrued Liabilities
Payables to customers
Increase (Decrease) in Payables to Customers
Payables to broker-dealers, clearing organizations and counterparties
Increase (Decrease) in Payables to Broker-Dealers and Clearing Organizations
Income taxes payable
Increase (Decrease) in Income Taxes Payable
Payables under repurchase agreements
Increase (Decrease) in Payables under Repurchase Agreements
Increase (Decrease) in Securities Loaned Transactions
Increase (Decrease) in Securities Loaned Transactions
Financial instruments sold, not yet purchased, at fair value
Increase (Decrease) in Financial Instruments Sold, Not yet Purchased
Net cash (used in) provided by operating activities
Net Cash Provided by (Used in) Operating Activities
Cash flows from investing activities:
Net Cash Provided by (Used in) Investing Activities [Abstract]
Cash paid for acquisitions, net
Payments to Acquire Businesses, Net of Cash Acquired
Purchase of property and equipment
Payments to Acquire Property, Plant, and Equipment
Net cash used in investing activities
Net Cash Provided by (Used in) Investing Activities
Cash flows from financing activities:
Net Cash Provided by (Used in) Financing Activities [Abstract]
Net change in payable to lenders under loans
Proceeds from (Repayments of) Debt
Repayments of Unsecured Debt
Repayments of Unsecured Debt
Payments of note payable
Repayments of Notes Payable
Deferred payments on acquisitions
Payments for (Proceeds from) Previous Acquisition
Debt issuance costs
Payments of Debt Issuance Costs
Exercise of stock options
Proceeds from Stock Options Exercised
Share repurchases
Payments for Repurchase of Common Stock
Excess income tax benefit on stock options and awards
Excess Tax Benefit from Share-based Compensation, Financing Activities
Net cash provided by financing activities
Net Cash Provided by (Used in) Financing Activities
Effect of exchange rates on cash and cash equivalents
Effect of Exchange Rate on Cash and Cash Equivalents
Net (decrease) increase in cash and cash equivalents
Cash and Cash Equivalents, Period Increase (Decrease)
Cash and cash equivalents at beginning of period
Cash and cash equivalents at end of period
Supplemental disclosure of cash flow information:
Supplemental Cash Flow Information [Abstract]
Cash paid for interest
Interest Paid
Income taxes paid, net of cash refunds
Income Taxes Paid, Net
Supplemental disclosure of non-cash investing and financing activities:
Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract]
Identified intangible assets and goodwill on acquisitions
Noncash or Part Noncash Acquisition, Intangible Assets Acquired
Additional consideration payable related to acquisitions, net
Acquisition of business:
Noncash or Part Noncash Acquisition, Net Nonmonetary Assets Acquired (Liabilities Assumed) [Abstract]
Debt Issuance Costs, Net
Debt Issuance Costs, Net
Number of different types of foreign currencies
Number of different types of foreign currencies
Number of different types of foreign currencies the company trades
Number of accounts for customers company-wide
Number of accounts for customers company-wide
The number of accounts for the customers the company provides services.
Schedule of Acquired Finite-Lived Intangible Asset by Major Class [Table]
Schedule of Acquired Finite-Lived Intangible Asset by Major Class [Table]
Computer Software, Intangible Asset [Member]
Computer Software, Intangible Asset [Member]
Customer Relationships [Member]
Customer Relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired
Finite-lived Intangible Assets Acquired
Finite-Lived Computer Software, Gross
Capitalized Computer Software, Gross
Finite-Lived Customer Lists, Gross
Finite-Lived Customer Lists, Gross
Finite-Lived Intangible Assets, Accumulated Amortization
Finite-Lived Intangible Assets, Accumulated Amortization
Derivative Instruments and Hedging Activities Disclosure [Abstract]
TBA securities purchased [Member]
TBA securities purchased [Member]
TBA securities purchased [Member]
TBA securities sold [Member]
TBA securities sold [Member] [Member]
TBA securities sold [Member]
Forward settling securities purchased [Member]
Forward settling securities purchased [Member]
Forward settling securities purchased [Member]
Over the Counter (OTC) Commodity Contracts [Member]
Forward settling securities sold [Member]
Forward settling securities sold [Member]
Derivative Liability, Notional Amount
Derivative Liability, Notional Amount
Derivative Asset, Notional Amount
Derivative Asset, Notional Amount
Income Taxes [Abstract]
Income Taxes [Abstract]
Deferred Tax Assets, Valuation Allowance
Deferred Tax Assets, Valuation Allowance
Income (Loss) from Continuing Operations before Income Taxes, Domestic
Income (Loss) from Continuing Operations before Income Taxes, Domestic
Deferred Tax Liabilities, Gross
Deferred Tax Liabilities, Gross
Deferred Tax Liabilities, Unrealized Gains on Trading Securities
Deferred Tax Liabilities, Unrealized Gains on Trading Securities
Income Tax Expense (Benefit)
Income Tax Expense (Benefit)
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent
Income Tax Disclosure [Text Block]
Income Tax Disclosure [Text Block]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount
Capital and Other Regulatory Requirements [Abstract]
Capital and Other Regulatory Requirements [Abstract]
Regulatory Capital Requirements under Banking Regulations [Text Block]
Regulatory Capital Requirements under Banking Regulations [Text Block]
reserve requirement [Axis]
reserve requirement [Axis]
reserve requirement [Axis]
reserve requirement [Domain]
reserve requirement [Domain]
[Domain] for reserve requirement [Axis]
Customer Reserve Requirement [Member] [Member]
Customer Reserve Requirement [Member] [Member]
Customer Reserve Requirement [Member] [Member]
PAB Reserve Requirement [Member]
PAB Reserve Requirement [Member]
PAB Reserve Requirement [Member]
Sterne Agee Clearing, Inc. [Member]
Sterne Agee Clearing, Inc. [Member]
Sterne Agee Clearing, Inc. [Member]
Sterne Agee, and Leach, Inc [Member]
Sterne Agee, and Leach, Inc [Member]
Sterne Agee, and Leach, Inc [Member]
Sterne Agee Financial Services, Inc. [Member]
Sterne Agee Financial Services, Inc. [Member]
Sterne Agee Financial Services, Inc. [Member]
INTL FCStone Ltd [Member]
INTL FCStone, Ltd [Member]
INTL FCStone, Ltd (IFEL) [Member]
INTL Netherlands BV [Member]
INTL FCStone Europe [Member]
INTL FCStone Europe [Member]
INTL FCStone DTVM Ltda [Member]
INTL FCStone DTVM Ltda [Member]
INTL FCStone DTVM Ltda [Member]
Gainvest S.A. Sociedad Gerente de FCI - Comision Nacional de Valores [Member]
Gainvest S.A. Sociedad Gerente de FCI - Comision Nacional de Valores [Member]
Gainvest S.A. Sociedad Gerente de FCI
INTL Capital S.A – Rosario Futures Exchanges [Member] [Domain]
INTL Capital S.A – Rosario Futures Exchanges [Member] [Domain]
INTL Capital S.A – Rosario Futures Exchanges [Member] [Domain]
INTL Capital S.A. – General Inspector of Justice [Member] [Domain]
INTL Capital S.A. – General Inspector of Justice [Member] [Domain]
INTL Capital S.A. – General Inspector of Justice [Member] [Domain]
INTL Capital S.A. – Superintendence of Securities Markets of Buenos Aires [Member] [Domain]
INTL Capital S.A. – Superintendence of Securities Markets of Buenos Aires [Member] [Domain]
INTL Capital S.A. – Superintendence of Securities Markets of Buenos Aires [Member] [Domain]
Cash Reserve Deposit Required and Made
Cash Reserve Deposit Required and Made
Net Capital under Commodity Exchange Act Computation
Required Net Capital under Commodity Exchange Act
Net Capital
Cash and Securities Segregated under Commodity Exchange Act Regulation
Cash and Securities Segregated under Commodity Exchange Act Regulation, Amount Required to be Segregated
Cash and Securities Segregated under Commodity Exchange Act Regulation, Amount Required to be Segregated
Cash and Securities Segregated under Commodity Exchange Act Regulation, Amount Required to be Segregated
Secured Funds
Secured Funds
Secured funds
Secured Funds Required Under Commodity Exchange Act
Secured Funds Required Under Commodity Exchange Act
Secured Funds Required Under Commodity Exchange Act
Capital Required for Capital Adequacy
Financing Receivables [Text Block]
Financing Receivables [Text Block]
Credit Facility [Axis]
Credit Facility [Axis]
Credit Facility [Domain]
Credit Facility [Domain]
Repayments of Unsecured Debt
Line of Credit Facility, Maximum Borrowing Capacity
Line of Credit Facility, Maximum Borrowing Capacity
Number of credit facilities
Number of credit facilities
Number of credit facilities available to the company.
Segment Reporting Disclosure [Text Block]
Segment Reporting Disclosure [Text Block]
Inventory Adjustments
Inventory Adjustments
Fair Value Disclosures [Text Block]
Fair Value Disclosures [Text Block]
Exim Bank Notes Receivable [Abstract]
Exim Bank Notes Receivable [Abstract]
Schedule of Accounts, Notes, Loans and Financing Receivable [Table]
Schedule of Accounts, Notes, Loans and Financing Receivable [Table]
Range [Axis]
Range [Axis]
Range [Domain]
Range [Domain]
Minimum [Member]
Minimum [Member]
Maximum [Member]
Maximum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Short Term Notes Receivable Outstanding Balance Threshold, Percentage
Short Term Notes Receivable Outstanding Balance Threshold, Percentage
Short Term Notes Receivable Outstanding Balance Threshold, Percentage
Insured short-term notes receivable
Insured short-term notes receivable
Insured short-term notes receivable
Obligations for participation rights
Obligations for participation rights
The obligations the company has related to the sale of participations rights in short-term notes receivables.
Repurchase Agreements, Resale Agreements, Securities Borrowed, and Securities Loaned Disclosure [Text Block]
Repurchase Agreements, Resale Agreements, Securities Borrowed, and Securities Loaned Disclosure [Text Block]
Schedule of Derivative Instruments [Table Text Block]
Schedule of Derivative Instruments [Table Text Block]
Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance [Table Text Block]
Derivative Instruments, Gain (Loss) [Table Text Block]
Document and Entity Information [Abstract]
Document and Entity Information [Abstract]
Entity Registrant Name
Entity Registrant Name
Trading Symbol
Trading Symbol
Entity Central Index Key
Entity Central Index Key
Current Fiscal Year End Date
Current Fiscal Year End Date
Entity Filer Category
Entity Filer Category
Document Type
Document Type
Document Period End Date
Document Period End Date
Document Fiscal Year Focus
Document Fiscal Year Focus
Document Fiscal Period Focus
Document Fiscal Period Focus
Amendment Flag
Amendment Flag
Entity Common Stock, Shares Outstanding
Entity Common Stock, Shares Outstanding
Entity Well-known Seasoned Issuer
Entity Well-known Seasoned Issuer
Entity Voluntary Filers
Entity Voluntary Filers
Entity Current Reporting Status
Entity Current Reporting Status
Condensed Consolidated Income Statements [Abstract]
Condensed Consolidated Income Statements [Abstract]
Revenues:
Revenues [Abstract]
Sales of physical commodities
Sales Revenue, Goods, Net
Trading gains, net
Trading Gain (Loss)
Commission and clearing fees
Fees and Commissions
Consulting and management fees
Asset Management Fees
Interest income
Interest Income, Operating
Other income
Other Income
Total revenues
Revenues
Cost of sales of physical commodities
Cost of Goods Sold
Operating revenues
Gross Profit
Transaction-based clearing expenses
Floor Brokerage, Exchange and Clearance Fees
Introducing broker commissions
Noninterest Expense Commission Expense
Interest expense
Interest Expense
Net operating revenues
Revenues, Net of Interest Expense
Compensation and other expenses:
Noninterest Expense [Abstract]
Compensation and benefits
Labor and Related Expense
Communication and data services
Communications and Information Technology
Occupancy and equipment rental
Occupancy, Net
Professional fees
Professional Fees
Travel and business development
Travel and Entertainment Expense
Depreciation and amortization
Depreciation, Depletion and Amortization
Bad debts
Provision for Doubtful Accounts and Impairment Charges
Amount of the current period expense charged against operations, the offset which is generally to the allowance for doubtful accounts for the purpose of reducing receivables, including notes receivable, to an amount that approximates their net realizable value (the amount expected to be collected). In addition, it includes the charge against earnings resulting from the aggregate write down of all assets from their carrying value to their fair value.
Other
Other Noninterest Expense
Total compensation and other expenses
Noninterest Expense
Income before tax
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest
Income tax expense
Net income
Earnings per share:
Earnings Per Share, Basic [Abstract]
Basic
Earnings Per Share, Basic
Diluted
Earnings Per Share, Diluted
Weighted-average number of common shares outstanding:
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Basic
Weighted Average Number of Shares Outstanding, Basic
Diluted
Weighted Average Number of Shares Outstanding, Diluted
Schedule of Goodwill [Table Text Block]
Schedule of Goodwill [Table Text Block]
Derivative Instruments and Hedging Activities Disclosure [Text Block]
Derivative Instruments and Hedging Activities Disclosure [Text Block]
Comprehensive Income (Loss) Note [Text Block]
Comprehensive Income (Loss) Note [Text Block]
Accumulated Other Comprehensive Income (Loss) [Table]
Accumulated Other Comprehensive Income (Loss) [Table]
Equity Components [Axis]
Accumulated Translation Adjustment [Member]
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Accumulated Defined Benefit Plans Adjustment [Member]
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax
Line of Credit Facility [Table]
Line of Credit Facility [Table]
Main line of credit facilities [Member]
Main line of credit facilities [Member]
Main line of credit facilities [Member]
HCO Syndicated line of credit facility [Member]
HCO Syndicated line of credit facility [Member]
HCO Syndicated line of credit facility [Member]
FCS Margin line of credit facility [Member]
FCS Margin line of credit facility [Member]
FCS Margin line of credit facility [Member]
FMS Sub-note commodity line of credit facility [Member]
FMS Sub-note commodity line of credit facility [Member]
FMS Sub-note commodity line of credit facility [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility [Line Items]
Line of Credit Facility, Current Borrowing Capacity
Line of Credit Facility, Current Borrowing Capacity
Short-term Debt
Short-term Debt
Proceeds from note payable
Proceeds from Notes Payable
Notes Payable to Bank
Notes Payable to Bank
Debt and Capital Lease Obligations
Debt and Capital Lease Obligations
Debt Instrument, Interest Rate, Stated Percentage
Debt Instrument, Interest Rate, Stated Percentage
Self Insurance Reserve
Self Insurance Reserve
Income Tax, Policy [Policy Text Block]
Income Tax, Policy [Policy Text Block]
Derivative, Notional Amount
Derivative, Notional Amount
Derivative, Average Remaining Maturity
Derivative, Average Remaining Maturity
Derivative, Number of Instruments Held
Derivative, Number of Instruments Held
Schedule of Segment Reporting Information, by Segment [Table]
Schedule of Segment Reporting Information, by Segment [Table]
Securities Segment [Member]
Clearing and Execution Services Segment [Member]
Clearing and Execution Services Segment [Member]
Clearing and Execution Services Segment [Member]
Corporate [Member]
Corporate Segment [Member]
Segment Reporting Information [Line Items]
Segment Reporting Information [Line Items]
Revenues
Operating revenues
Net operating revenues
Net Segment Contribution
Net Segment Contribution
Net segment contribution equals revenues less cost of sales, transaction-based clearing expenses, variable bonus compensation, introducing broker commissions and interest expense.
Segment Income
Segment Income
Segment Income equals net contribution less non-variable direct segment costs.
Costs not allocated to operating segments
Costs not allocated to operating segments
Costs not allocated to operating segments
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest
Net income
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent
Less: Net income allocated to participating securities
Undistributed Earnings Allocated to Participating Securities - Continuing Operations
Undistributed Earnings Allocated to Participating Securities - Continuing Operations represents earnings from continuing operations allocated (not distributed) to participating securities under the two-class method to the extent that participating securities may share in earnings as if all of the earnings for the period had been distributed.
Net income allocated to common shareholders
Income from continuing operations allocated to common shareholders
Income from continuing operations allocated to common shareholders represents income from continuing operations attributable to shareholders less allocation to participating securities plus interest on convertible debt less the allocation of the earnings from the interest on convertible debt to participating securities.
Weighted average number of common shares outstanding
Dilutive potential common shares outstanding:
Dilutive Securities, Effect on Basic Earnings Per Share [Abstract]
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements
Diluted weighted-average shares
Schedule of Other Operating Cost and Expense, by Component [Table Text Block]
Schedule of Other Operating Cost and Expense, by Component [Table Text Block]