Receivables [Abstract] Schedule of Impaired Financing Receivable [Table] Schedule of Impaired Financing Receivable [Table] Balance Sheet Location [Axis] Balance Sheet Location [Axis] Balance Sheet Location [Domain] Balance Sheet Location [Domain] On-balance sheet [Member] On-balance sheet [Member] On-balance sheet [Member] Off-balance sheet [Member] Off-balance sheet [Member] Off-balance sheet [Member] Payment Status of Loan or Loans held in Securities [Axis] Payment Status of Loan or Loans held in Securities [Axis] Payment Status of Loan or Loans held in Securities [Axis] Payment Status of Loan or Loans held in Securities [Domain] Payment Status of Loan or Loans held in Securities [Domain] [Domain] for Payment Status of Loan or Loans held in Securities [Axis] Less than 90 days past due [Member] Less than 90 days past due [Member] Less than 90 days past due [Member] Impairment Analysis [Axis] Impairment Analysis [Axis] Impairment Analysis [Axis] Impairment Analysis [Domain] Impairment 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Net (Provision for)/release of allowance for loan losses Provision for Loan Losses Expensed Interest Income (Expense), after Provision for Loan Loss Interest Income (Expense), after Provision for Loan Loss Guarantee and commitment fees Guaranty Fee Income Gain (loss) on derivatives instruments and hedging activity net pretax Gain (loss) on derivatives instruments and hedging activity net pretax Aggregate gain (loss) on all derivatives instruments and hedging activity recognized in earnings during the period, before tax effects Gains/(losses) on trading securities Trading Gain (Loss) Gains/(losses) on sale of available-for-sale investment securities Gain (Loss) on Sale of Securities, Net (Losses)/gains on sale of real estate owned Gains (Losses) on Sales of Other Real Estate Other income Noninterest Income, Other Operating Income Non-interest income Noninterest Income Noninterest Expense Noninterest Expense Income before income taxes Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest Income tax expense Income Tax Expense (Benefit) Net income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Less: Net income attributable to non-controlling interest Net Income (Loss) Attributable to Noncontrolling Interest Net Income (Loss) Attributable to Parent Net Income (Loss) Attributable to Parent Preferred Stock Dividends, Income Statement Impact Preferred Stock Dividends, Income Statement Impact Loss on retirement of preferred stock Preferred Stock Redemption Premium Net Income (Loss) Available to Common Stockholders, Basic Net Income (Loss) Available to Common Stockholders, Basic Basic earnings per common share Earnings Per Share, Basic Diluted earnings per common share Earnings Per Share, Diluted Schedule of Financing Receivables Past Due [Table] Schedule of Financing Receivables Past Due [Table] Financing Receivable, Recorded Investment, Past Due [Line Items] 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[Table Text Block] Past Due Financing Receivables [Table Text Block] Past Due Financing Receivables [Table Text Block] Financing Receivable Credit Quality Indicators [Table Text Block] Financing Receivable Credit Quality Indicators [Table Text Block] Schedules of Concentration of Risk, by Risk Factor [Table Text Block] Schedules of Concentration of Risk, by Risk Factor [Table Text Block] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Original Loan-To-Value Ratio Range [Axis] Original Loan-To-Value Ratio Range [Axis] Original Loan-To-Value Ratio Range [Axis] Financing Receivables, Original Loan-To-Value Ratio Range [Domain] Financing Receivables, Original Loan-To-Value Ratio Range [Domain] Financing Receivables, Original Loan-To-Value Ratio Range [Domain] Financing Receivables, Original Loan-To-Value Ratio, Range One [Member] Financing Receivables, Original Loan-To-Value Ratio, Range One [Member] Financing Receivables, Original Loan-To-Value Ratio, Range One [Member] Financing Receivables, Original Loan-To-Value Ratio, Range Two [Member] Financing Receivables, Original Loan-To-Value Ratio, Range Two [Member] Financing Receivables, Original Loan-To-Value Ratio, Range Two [Member] Financing Receivables, Original Loan-To-Value Ratio, Range Three [Member] Financing Receivables, Original Loan-To-Value Ratio, Range Three [Member] Financing Receivables, Original Loan-To-Value Ratio, Range Three [Member] Financing Receivables, Original Loan-To-Value Ratio, Range Four [Member] Financing Receivables, Original Loan-To-Value Ratio, Range Four [Member] Financing Receivables, Original Loan-To-Value Ratio, Range Four [Member] Financing Receivables, Original Loan-To-Value Ratio, Range Five [Member] Financing Receivables, Original Loan-To-Value Ratio, Range Five [Member] Financing Receivables, Original Loan-To-Value Ratio, Range Five [Member] Financing Receivables, Original Loan-To-Value Ratio, Range Six [Member] Financing Receivables, Original Loan-To-Value Ratio, Range Six [Member] Financing Receivables, Original Loan-To-Value Ratio, Range Six [Member] Geographical [Axis] Geographical [Axis] Geographical [Domain] Geographical [Domain] Northwest [Member] Northwest [Member] Northwest [Member] Southwest [Member] Southwest [Member] Southwest [Member] Mid-North [Member] Mid-North [Member] Mid-North [Member] Mid-South [Member] Mid-South [Member] Mid-South [Member] Northeast [Member] Northeast [Member] Northeast [Member] Southeast [Member] Southeast [Member] Southeast [Member] Accounts, Notes, Loans and Financing Receivable [Line Items] Accounts, Notes, Loans and Financing Receivable [Line Items] Financing Receivable, Gross Financing Receivable, Gross Financing Receivables, Loan-To-Value Ratio Range, Lower Range Limit Financing Receivables, Loan-To-Value Ratio Range, Lower Range Limit Financing Receivables, Loan-To-Value Ratio Range, Lower Range Limit Financing Receivables, Loan-To-Value Ratio Range, Upper Range Limit Financing Receivables, Loan-To-Value Ratio Range, Upper Range Limit Financing Receivables, Loan-To-Value Ratio Range, Upper Range Limit Schedule of Available-for-sale and Trading Securities [Table] Schedule of Available-for-sale and Trading Securities [Table] Schedule of Available-for-sale and Trading Securities [Table] Fixed Interest Rate [Member] Fixed Interest Rate [Member] Fixed Interest Rate [Member] Investments by Category [Axis] Investments by Category [Axis] Marketable Securities and Investments Held at Cost [Domain] Marketable Securities and Investments Held at Cost [Domain] Trading Securities [Member] Trading Securities [Member] Available-for-sale Securities [Member] Available-for-sale Securities [Member] Corporate Debt Securities [Member] Corporate Debt Securities [Member] GSE Subordinated Debt [Member} Subordinated Debt [Member] Taxable Municipal Bonds [Member] Taxable Municipal Bonds [Member] US Treasury Securities [Member] US Treasury Securities [Member] Interest-Only-Strip [Member] Interest-Only-Strip [Member] Schedule of Available-for-sale and Trading Securities [Line Items] Schedule of Available-for-sale and Trading Securities [Line Items] Schedule of Available-for-sale and Trading Securities [Line Items] Available-for-sale Securities [Abstract] Available-for-sale Securities [Abstract] Available-for-Sale Securities Unpaid Principal Balance Available-for-Sale Securities Unpaid Principal Balance Available-for-Sale Securities Unpaid Principal Balance Unamortized Premium/(Discount) Debt Instrument, Unamortized Discount (Premium), Net Available-for-sale Securities, Amortized Cost Basis Available-for-sale Securities, Amortized Cost Basis Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax Available-for-sale Securities, Unrealized Losses Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax Available-for-sale Securities, Fair Value Disclosure Derivative, Notional Amount Derivative, Notional Amount Trading Securities [Abstract] Trading Securities [Abstract] Trading Securities - Amount Outstanding Trading Securities - Amount Outstanding Trading Securities - Amount Outstanding Trading Securities, Debt, Amortized Cost Trading Securities, Debt, Amortized Cost Trading Securities, Unrealized Gains Trading Securities, Unrealized Holding Gain Trading Securities, Unrealized Losses Trading Securities, Unrealized Holding Loss Marketable Securities [Abstract] Marketable Securities [Abstract] Marketable Securities Unpaid Principal Balance Marketable Securities Unpaid Principal Balance Marketable Securities Unpaid Principal Balance Marketable Securities, Amortized Cost Marketable Securities, Amortized Cost Basis Marketable Securities, Amortized Cost Basis Marketable Securities, Unrealized Gains Marketable Securities, Gross Unrealized Gains Marketable Securities, Gross Unrealized Gains Marketable Securities, Unrealized Losses Marketable Securities, Gross Unrealized Losses Marketable Securities, Gross Unrealized Losses Income Tax Disclosure [Abstract] Valuation Allowance [Table] Valuation Allowance [Table] Valuation Allowance by Deferred Tax Asset [Axis] Valuation Allowance by Deferred Tax Asset [Axis] Deferred Tax Asset [Domain] Deferred Tax Asset [Domain] Capital Loss Carryforward [Member] Capital Loss Carryforward [Member] Valuation Allowance [Line Items] Valuation Allowance [Line Items] Basis differences related to financial derivatives Deferred Tax Assets, Derivative Instruments Basis differences related to securities Deferred Tax Asset - basis in securities Deferred Tax Asset - basis in securities Unrealized losses on available-for-sale securities Deferred Tax Assets, Unrealized Losses on Available-for-Sale Securities, Gross Allowance for losses Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Provision for Loan Losses 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[Table Text Block] Schedule of Financing Receivable, Allowance for Credit Losses [Table] Schedule of Financing Receivable, Allowance for Credit Losses [Table] Guarantor Obligations, Nature [Axis] Guarantor Obligations, Nature [Axis] Guarantor Obligations, Nature [Domain] Guarantor Obligations, Nature [Domain] Eligible Loans [Member] Eligible Loans [Member] Eligible Loans [Member] Valuation Allowances and Reserves Type [Axis] Valuation Allowances and Reserves Type [Axis] Valuation Allowances and Reserves [Domain] Valuation Allowances and Reserves [Domain] Allowance for Loan and Lease Losses [Member] Allowance for Loan and Lease Losses [Member] Reserve for Off-balance Sheet Activities [Member] Reserve for Off-balance Sheet Activities [Member] Financing Receivable, Allowance for Credit Losses [Line Items] Financing Receivable, Allowance for Credit Losses [Line Items] Financing Receivable, Allowance for Credit Losses [Roll Forward] Financing Receivable, Allowance for Credit Losses [Roll Forward] Beginning Balance - Allowance for Loan Losses Allowance for Loan and Lease Losses, Real Estate Beginning Balance - Reserve for Losses Reserve for losses The reserve for guarantee losses is a liability account in the consolidated balance sheets that reflects an estimate of incurred credit losses related to the guaranty of unconsolidated trusts and other credit guarantees Beginning Balance - Total Allowance for Losses Financing Receivable, Allowance for Credit Losses (Release of)/provision for reserve for losses Provision for Other Credit Losses Total (release of)/provision for losses Provision for Loan, Lease, and Other Losses Financing Receivable, Allowance for Credit Losses, Write-downs Financing Receivable, Allowance for Credit Losses, Write-downs Financing Receivable, Allowance for Credit Losses, Recovery Financing Receivable, Allowance for Credit Losses, Recovery Ending Balance - Allowance for Loan Losses Ending Balance - Reserve for Losses Ending Balance - Total Allowance 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[Axis] Hedging Designation [Domain] Hedging Designation [Domain] Designated as Hedging Instrument [Member] Designated as Hedging Instrument [Member] Not Designated as Hedging Instrument [Member] Not Designated as Hedging Instrument [Member] Hedging Relationship [Axis] Hedging Relationship [Axis] Hedging Relationship [Domain] Hedging Relationship [Domain] Fair Value Hedging [Member] Fair Value Hedging [Member] Cash Flow Hedging [Member] Cash Flow Hedging [Member] Derivative Instruments, Gain (Loss) [Line Items] Derivative Instruments, Gain (Loss) [Line Items] Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge Gain (Loss) on Fair Value Hedges Recognized in Earnings Gain (Loss) on Fair Value Hedges Recognized in Earnings Gain (Loss) on Interest Rate Cash Flow Hedge 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Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months, Net Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months, Net Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months, Net of Tax Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months, Net of Tax Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months, Net of Tax Maximum Length of Time Hedged in Interest Rate Cash Flow Hedge Maximum Length of Time Hedged in Interest Rate Cash Flow Hedge Gain (Loss) on Discontinuation of Interest Rate Cash Flow Hedge Due to Forecasted Transaction Probable of Not Occurring, Net Gain (Loss) on Discontinuation of Interest Rate Cash Flow Hedge Due to Forecasted Transaction Probable of Not Occurring, Net Farmer Mac Guaranteed Securities and USDA Securities [Member] US Treasury and Government [Member] Available-for-sale Securities, Debt Maturities [Abstract] Available-for-sale Securities, Debt Maturities [Abstract] Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract] Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract] Available-for-sale Securities, Debt Maturities, Single Maturity Date, Amortized Cost Basis [Abstract] Available-for-sale Securities, Debt Maturities, Single Maturity Date, Amortized Cost Basis [Abstract] Available-for-sale Securities, Due within one year, Amortized Cost Available-for-sale Securities, Debt Maturities, Next Twelve Months, Amortized Cost Basis Available-for-sale Securities, Due after one year through five years, Amortized Cost Available-for-sale Securities, Debt Maturities, Year Two Through Five, Amortized Cost Basis Available-for-sale Securities, Due after five years through ten years, Amortized Cost Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Amortized Cost Basis Available-for-sale Securities, Due after ten years, Amortized Cost Available-for-sale Securities, Debt Maturities, after Ten Years, Amortized Cost Basis Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract] Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract] Available-for-sale Securities, Debt Maturities, Single Maturity Date [Abstract] Available-for-sale Securities, Debt Maturities, Single Maturity Date [Abstract] Available-for-sale Securities, Due within one year, Fair Value Available-for-sale Securities, Debt Maturities, Next Twelve Months, Fair Value Available-for-sale Securities, Due after one year through five years, Fair Value Available-for-sale Securities, Debt Maturities, Year Two Through Five, Fair Value Available-for-sale Securities, Due after five years through ten years, Fair Value Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Fair Value Available-for-sale Securities, Due after ten years, Fair Value Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value Available-for-sale Securities, Debt Maturities, Weighted-Average Yield, Fiscal Year Maturity [Abstract] Available-for-sale Securities, Debt Maturities, Weighted-Average Yield, Fiscal Year Maturity [Abstract] Available-for-sale Securities, Debt Maturities, Weighted-Average Yield, Fiscal Year Maturity [Abstract] Available-for-sale Securities, Debt Maturities, Weighted Average Yield, Single Maturity Date [Abstract] Available-for-sale Securities, Debt Maturities, Weighted Average Yield, Single Maturity Date [Abstract] Available-for-sale Securities, Debt Maturities, Weighted Average Yield, Single Maturity Date [Abstract] Available-for-sale Securities, Due within one year, Weighted-Average Yield Available-for-sale Securities, Debt Maturities, Next Twelve Months, Weighted-Average Yield Available-for-sale Securities, Debt Maturities, Next Twelve Months, Weighted-Average Yield Available-for-sale Securities, Due after 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Modifications, Pre-Modification Recorded Investment Financing Receivable, Modifications, Pre-Modification Recorded Investment Financing Receivable, Modifications, Post-Modification Recorded Investment Financing Receivable, Modifications, Post-Modification Recorded Investment Financing Receivable, Modifications, Subsequent Default, Number of Contracts Financing Receivable, Modifications, Subsequent Default, Number of Contracts Financing Receivable, Modifications, Subsequent Default, Recorded Investment Financing Receivable, Modifications, Subsequent Default, Recorded Investment Financing Receivable, Modifications, Subsequent Default, Determination of Allowance for Credit Losses Financing Receivable, Modifications, Subsequent Default, Determination of Allowance for Credit Losses Accounting Policies [Abstract] Accounting Policies Disclosure Significant Accounting Policies [Text Block] Equity [Abstract] Number of Outstanding of Stock Options and SARs Share-based Compensation Arrangement by 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and Expirations in Period Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period Stock Options and SARs Forfeitures and Expirations in Period, Weighted Average Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price Exercisable Number of Stock Options and SARs Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number Stock Options and SARs Exercisable, Weighted Average Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price Outstanding Non-Vested Restricted Stock Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Restricted Stock, Nonvested, Weighted Average Grant Date Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Restricted Stock, Grants in Period Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Restricted Stock Awarded, Weighted Average Grant Date Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Restricted Stock, Forfeited in Period Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Restricted Stock, Forfeitures, Weighted Average Grant Date Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Restricted Stock, Net of Forfeitures Stock Issued During Period, Shares, Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures Restricted Stock, Vested in Period, Weighted Average Grant Date Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Loans and Allowance for Credit Losses and Concentration Risk Disclosure Loans and Allowance for Credit Losses and Concentration Risk Disclosure [Text Block] Loans and Allowance for Credit Losses and Concentration Risk Disclosure [Text Block] Current income tax expense Current Income Tax Expense (Benefit) Deferred income taxes Deferred Income Tax Expense (Benefit) Capital Requirements, Minimum Capital, Percentage of Aggregate On-Balance Sheet Assets Included In Core Capital Capital Requirements, Minimum Capital, Percentage of Aggregate On-Balance Sheet Assets Included In Core Capital Capital Requirements, Minimum Capital, Percentage of Aggregate On-Balance Sheet Assets Included In Core Capital Capital Requirements, Minimum Capital, Percentage of Aggregate Off-Balance Sheet Assets Included In Core Capital Capital Requirements, Minimum Capital, Percentage of Aggregate Off-Balance Sheet Assets Included In Core Capital Capital Requirements, Minimum Capital, Percentage of Aggregate Off-Balance Sheet Assets Included In Core Capital Capital Requirements, Critical Capital, Percentage of Core Capital of Total Minimum Capital Capital Requirements, Critical Capital, Percentage of Core Capital of Total Minimum Capital Capital Requirements, Critical Capital, Percentage of Core Capital of Total Minimum Capital Minimum Capital Required Capital Required for Capital Adequacy Core Capital Level Capital Excess Core Capital Level Excess Capital Commitments and Contingencies Disclosure [Abstract] Schedule of Guarantor Obligations [Table] Schedule of Guarantor Obligations [Table] Farmer Mac Guaranteed Securities [Member] Farmer Mac Guaranteed Securities [Member] Farmer Mac Guaranteed Securities [Member] Variable Interest Entity, Not Primary Beneficiary [Member] Variable Interest Entity, Not Primary Beneficiary [Member] Guarantor Obligations [Line Items] Guarantor Obligations [Line Items] Proceeds from sale of Farmer Mac Guaranteed Securities Proceeds from Sale of Other Investments Proceeds from Fees Received Proceeds from Fees Received Payments to Acquire Loans and Leases Held-for-investment Payments to Acquire Loans and Leases Held-for-investment Guarantor Obligations, Current Carrying Value Guarantor Obligations, Current Carrying Value Weighted average remaining maturity, Loans underlying guarantees not held by transferor Weighted average remaining maturity, Loans underlying guarantees not held by transferor Weighted average remaining maturity, Loans underlying guarantees not held by transferor Organization, Consolidation and Presentation of Financial Statements [Abstract] Business Description and Basis of Presentation [Text Block] Business Description and Basis of Presentation [Text Block] Income Tax Disclosure [Text Block] Income Tax Disclosure [Text Block] Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Table] Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Table] Long-Term Standby Purchase Commitments [Member] Long-Term Standby Purchase Commitments [Member] Long-Term Standby Purchase Commitments [Member] Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items] Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items] Certain Loans Acquired In Transfer Not Accounted For As Debt Securities, Number Defaulted Certain Loans Acquired In Transfer Not Accounted For As Debt Securities, Number Defaulted Certain Loans Acquired In Transfer Not Accounted For As Debt Securities, Number Defaulted Payments to Acquire Other Loans and Leases Held-for-investment Payments to Acquire Other Loans and Leases Held-for-investment Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, UPB at acquisition Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Balance During Period Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Balance During Period Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Acquired During Period, Contractually Required Payments Receivable at Acquisition, During the Period Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Acquired During Period, Contractually Required Payments Receivable at Acquisition, During the Period Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Acquired During Period, Contractually Required Payments Receivable at Acquisition, During the Period Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Provision for Loan Losses Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Provision for Loan Losses Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Allowance for Loan Losses, Decreases Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Allowance for Loan Losses, Decreases Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Carrying Amount, Net Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Carrying Amount, Net Schedule of Quarterly Financial Information [Table Text Block] Schedule of Quarterly Financial Information [Table Text Block] Schedule of Related Party Transactions, by Related Party [Table] Schedule of Related Party Transactions, by Related Party [Table] Investment Type [Axis] Investment Type [Axis] Investments [Domain] Investments [Domain] Guarantee Obligations [Member] Guarantee Obligations [Member] Class of Financing Receivable [Axis] Class of Financing Receivable, Type [Axis] Class of Financing Receivable [Domain] Class of Financing Receivable, Type [Domain] Mortgage Loans on Real Estate [Member] Mortgages [Member] Farm & Ranch [Member] Farm & Ranch [Member] Farm & Ranch [Member] USDA Guarantee [Member] USDA Guarantee [Member] USDA Guarantee [Member] Related Party [Axis] Related Party [Axis] Related Party [Domain] Related Party [Domain] AgFirst Farm Credit Bank [Member] AgFirst Farm Credit Bank [Member] AgFirst Farm Credit Bank [Member] First Dakota Bank [Member] First Dakota Bank [Member] First Dakota Bank [Member] Bath State Bank [Member] Bath State Bank [Member] Bath State Bank [Member] AgGeorgia [Member] AgGeorgia [Member] AgGeorgia CoBank, ACB [Member] CoBank, ACB [Member] CoBank, ACB [Member] Related Party Transaction [Line Items] Related Party Transaction [Line Items] Accounts Receivable, Related Parties, Current Accounts Receivable, Related Parties, Current Related Party Transaction, Purchases from Related Party Related Party Transaction, Purchases from Related Party Related Party Transaction, Expenses from Transactions with Related Party Related Party Transaction, Expenses from Transactions with Related Party Revenue from Related Parties Revenue from Related Parties Notes Receivable, Related Parties Notes Receivable, Related Parties Common Stock Ownership Percentage by a Related Party Common Stock Ownership Percentage by a Related Party Common Stock Ownership Percentage by a Related Party Schedule of Stock by Class [Table] Schedule of Stock by Class [Table] Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Sale of Stock [Axis] Sale of Stock [Axis] Sale of Stock [Domain] Sale of Stock [Domain] Private Placement [Member] Private Placement [Member] Farmer Mac II LLC [Member] Farmer Mac II LLC [Member] Farmer Mac II LLC [Member] Preferred Stock [Member] Preferred Stock [Member] Class of Stock [Line Items] Class of Stock [Line Items] Sale of Stock, Consideration Received on Transaction Sale of Stock, Consideration Received on Transaction Sale of Stock, Number of Shares Issued in Transaction Sale of Stock, Number of Shares Issued in Transaction Preferred Stock, Liquidation Preference Per Share Preferred Stock, Liquidation Preference Per Share Redemption of Farmer Mac II LLC preferred stock Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests Issuance Costs on the retirement of Farmer Mac II LLC Preferred Stock Schedule of Guarantee Obligations Activity [Table Text Block] Schedule of Guarantee Obligations Activity [Table Text Block] [Table Text Block] for Schedule of Guarantee Obligations Activity [Table] Schedule of Guarantor Obligations [Table Text Block] Schedule of Guarantor Obligations [Table Text Block] Schedule of Cash Flows Related To Transfer of Securitizations [Table Text Block] Schedule of Cash Flows Related To Transfer of Securitizations [Table Text Block] Schedule of Cash Flows Related To Transfer of Securitizations [Table Text Block] Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block] Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block] Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Net Investment Gain (Loss) Including Portion Attributable to Noncontrolling Interest [Member] Accumulated Net Investment Gain (Loss) Including Portion Attributable to Noncontrolling Interest [Member] Accumulated Net Gain (Loss) from Cash Flow Hedges Including Portion Attributable to Noncontrolling Interest [Member] Accumulated Net Gain (Loss) from Cash Flow Hedges Including Portion Attributable to Noncontrolling Interest [Member] Held-to-maturity Securities [Member] Held-to-maturity Securities [Member] Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] AOCI Beginning Balance Accumulated Other Comprehensive Income (Loss), Net of Tax Other comprehensive (loss)/income before reclassifications Other Comprehensive Income (Loss), before Reclassifications, Net of Tax Amounts reclassified from AOCI Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax Net other comprehensive (loss)/income Other Comprehensive Income (Loss), Net of Tax AOCI Ending Balance Farmer Mac Guaranteed Securities: Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member] Assets: Assets [Abstract] Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Held-to-maturity, at amortized cost Held-to-maturity Securities Loans: Loans Receivable, Gross, Commercial, Financial and Agricultural [Abstract] Loans held for investment, at amortized cost Loans and Leases Receivable, Gross Loans held for investment in consolidated trusts, at amortized cost Variable Interest Entity, Consolidated, Carrying Amount, Assets Allowance for loan losses Total loans, net of allowance Loans and Leases Receivable, Net Amount Real estate owned, at lower of cost or fair value Real Estate Acquired Through Foreclosure Financial derivatives, at fair value Derivative Asset, Fair Value, Gross Asset Interest receivable (includes $7,938 and $9,509, respectively, related to consolidated trusts) Guarantee and commitment fees receivable Guaranty Assets Prepaid expenses and other assets Prepaid Expense and Other Assets Total Assets Assets Liabilities and Equity: Liabilities and Equity [Abstract] Liabilities: Liabilities [Abstract] Notes payable: Notes Payable [Abstract] Due within one year Short-term Debt Due after one year Long-term Debt Total notes payable Debt and Capital Lease Obligations Debt securities of consolidated trusts held by third parties Variable Interest Entity, Consolidated, Carrying Amount, Liabilities Financial derivatives, at fair value Derivative Liability, Fair Value, Gross Liability Accrued interest payable (includes $6,705 and $5,145, respectively, related to consolidated trusts) Guarantee and commitment obligation Guaranty Liabilities Accounts payable and accrued expenses Accounts Payable and Other Accrued Liabilities Reserve for losses Total Liabilities Liabilities Commitments and Contingencies (Note 12) Commitments and Contingencies Equity: Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Preferred stock: Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract] Preferred stock Preferred Stock, Value, Issued Common stock: Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract] Common Stock Common Stock, Value, Issued Additional paid-in capital Additional Paid in Capital Accumulated other comprehensive (loss)/income, net of tax Retained earnings Retained Earnings (Accumulated Deficit) Total Stockholders' Equity Stockholders' Equity Attributable to Parent Non-controlling interest Stockholders' Equity Attributable to Noncontrolling Interest Total Equity Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Total Liabilities and Equity Liabilities and Equity Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value Measurements, Recurring and Nonrecurring [Table] Senior Agency Debt [Member] US Government Corporations and Agencies Securities [Member] Fair Value, Measurements, Nonrecurring [Member] Fair Value, Measurements, Nonrecurring [Member] 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, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Investments, Fair Value Disclosure Investments, Fair Value Disclosure Derivative Asset Derivative Asset Assets, Fair Value Disclosure Assets, Fair Value Disclosure Derivative Liability Derivative Liability Financial and Nonfinancial Liabilities, Fair Value Disclosure Financial and Nonfinancial Liabilities, Fair Value Disclosure Loans and Leases Receivable, Net Amount Revolving Credit Facility [Member] Revolving Credit Facility [Member] Rural Utilities [Member] Rural Utilities [Member] Rural Utilities [Member] Loans [Member] Real Estate Loan [Member] CFC [Member] CFC [Member] CFC [Member] Related Party Transaction, Related Party's percent of total Program Related Party Transaction, Related Party's percent of total Program Related Party Transaction, Related Party's percent of total Program Related Party's percent of Farmer Mac Total Outstanding Book of Business Related Party's percent of Farmer Mac Total Outstanding Book of Business Related Party's percent of Farmer Mac Total Outstanding Book of Business Related Party Transaction, Other Revenues from Transactions with Related Party Related Party Transaction, Other Revenues from Transactions with Related Party Due from Related Parties Due from Related Parties Interest Income, Related Party Interest Income, Related Party Fair Value Measurements, Recurring and Nonrecurring [Table Text Block] Fair Value Measurements, Recurring and Nonrecurring [Table Text Block] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Fair Value Inputs, Assets and Liabilities, Quantitative Information [Table Text Block] Fair Value Inputs, Assets, Quantitative Information [Table Text Block] Fair Value, by Balance Sheet Grouping [Table Text Block] Fair Value, by Balance Sheet Grouping [Table Text Block] Number of Subsidiaries Number of Subsidiaries Number of Subsidiaries Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block] Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block] Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Statement of Stockholders' Equity [Abstract] Common Stock [Member] Common Stock [Member] Additional Paid-in Capital [Member] Additional Paid-in Capital [Member] Accumulated Other Comprehensive Income (Loss) [Member] AOCI Including Portion Attributable to Noncontrolling Interest [Member] Retained Earnings [Member] Retained Earnings [Member] Noncontrolling Interest [Member] Noncontrolling Interest [Member] Retired Series C Preferred Stock [Member] Retired Series C Preferred Stock [Member] Retired Series C Preferred Stock [Member] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Beginning Balance (Shares Outstanding) Shares, Outstanding Beginning Balance Net income attributable to Farmer Mac Other comprehensive income, net of tax Dividends, Preferred Stock, Cash Dividends, Preferred Stock, Cash Dividends, Common Stock, Cash Dividends, Common Stock, Cash Stock Issued During Period, Shares, New Issues Stock Issued During Period, Shares, New Issues Stock Issued During Period, Value, New Issues Stock Issued During Period, Value, New Issues Redemption of Series C preferred stock (retired on January 17, 2013) Stock Redeemed or Called During Period, Shares Redemption of Series C preferred stock (retired on January 17, 2013) Stock Redeemed or Called During Period, Value Repurchase of Class C Common Stock Stock Repurchased and Retired During Period, Shares Repurchase of Class C Common Stock Stock Repurchased and Retired During Period, Value Stock-based compensation cost Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition Other stock-based award activity Adjustment to Additional Paid in Capital, Income Tax Effect from Share-based Compensation, Net Investment in subsidiary - non-controlling interest Noncontrolling Interest, Increase from Business Combination Ending Balance (Shares Outstanding) Ending Balance Level 3 [Member] Derivative Credit Risk Valuation Adjustment, Derivative Assets Derivative Credit Risk Valuation Adjustment, Derivative Assets Assets and Liabilities, Fair Value Disclosure Assets and Liabilities, Fair Value Disclosure Assets and Liabilities, Fair Value Disclosure Fair Value, Assets and Liabilities Fair Value as Percent of Total Assets Fair Value, Assets and Liabilities Fair Value as Percent of Total Assets Fair Value, Assets and Liabilities Fair Value as Percent of Total Assets Fair Value, Assets and Liabilities, Fair Value as Percent of Total Financial Instruments Measured at Fair Value Fair Value, Assets and Liabilities, Fair Value as Percent of Total Financial Instruments Measured at Fair Value Fair Value, Assets and Liabilities, Fair Value as Percent of Total Financial Instruments Measured at Fair Value Entity [Abstract] Entity [Abstract] Entities [Table] Entities [Table] Entity Information [Line Items] Entity Information [Line Items] Entity Registrant Name Entity Registrant Name 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 Trading Symbol Trading Symbol 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 Entity Public Float Entity Public Float Marketable Securities [Table Text Block] Marketable Securities [Table Text Block] Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Table Text Block] Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Table Text Block] Investments Classified by Contractual Maturity Date [Table Text Block] Investments Classified by Contractual Maturity Date [Table Text Block] Additional Financial Information Disclosure [Text Block] Additional Financial Information Disclosure [Text Block] Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract] Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract] Financing Receivable, Collectively Evaluated for Impairment Financing Receivable, Collectively Evaluated for Impairment Financing Receivable, Individually Evaluated for Impairment Financing Receivable, Individually Evaluated for Impairment Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment Financing Receivable, Allowance for Credit Losses Performance Guarantee [Member] Performance Guarantee [Member] Related Party Transactions, Outstanding Balance Related Party Transactions, Outstanding Balance Related Party Transactions, Outstanding Balance Dividend Rate By Period [Axis] Dividend Rate By Period [Axis] Dividend Rate By Period [Axis] Dividend Rate Period [Domain] Dividend Rate Period [Domain] Dividend Rate Period [Domain] July 17, 2024, thereafter [Member] July 17, 2024, thereafter [Member] July 17, 2024, thereafter [Member] Up to but excluding July 17, 2024 [Member] Up to but excluding July 17, 2024 [Member] Up to but excluding July 17, 2024 [Member] Preferred Stock, Dividend Rate, Percentage Preferred Stock, Dividend Rate, Percentage Preferred Stock, Dividend Variable Rate, Percentage Preferred Stock, Dividend Variable Rate, Percentage Preferred Stock, Dividend Variable Rate, Percentage Payments of Stock Issuance Costs Payments of Stock Issuance Costs Farm Credit Bank of Texas [Member] Farm Credit Bank of Texas [Member] Farm Credit Bank of Texas [Member] Statement of Cash Flows [Abstract] Farmer Mac Guaranteed Securities and USDA Securities [Member] Farmer Mac and USDA Guaranteed Securities [Member] Farmer Mac and USDA Guaranteed Securities [Member] Short-term Debt, Type [Axis] Short-term Debt, Type [Axis] Short-term Debt, Type [Domain] Short-term Debt, Type [Domain] Discount Notes [Member] Notes Payable to Banks [Member] Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Medium-term Notes [Member] Medium-term Notes [Member] Cash flows from operating activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net income to net cash provided by operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Net amortization of deferred gains, premiums, and discounts on loans, investments, Farmer Mac Guaranteed Securities, and USDA Securities Accretion (Amortization) of Discounts and Premiums, Investments Amortization of debt premiums, discounts and issuance costs Amortization of Financing Costs and Discounts Net change in fair value of trading securities, hedged assets, and financial derivatives Net change in fair value of trading securities, hedged assets, financial derivatives and loans held for sale Net change in fair value of trading securities, hedged assets, financial derivatives and loans held for sale (Gains)/losses on sale of available-for-sale investment securities Gains on repurchase of debt Gains (Losses) on Extinguishment of Debt Losses/(gains) on sale of real estate owned Stock-based compensation expense Share-based Compensation Proceeds from repayment of trading investment securities Proceeds from (Payments for) Trading Securities, Short-term Proceeds from repayment of loans purchased as held for sale Proceeds from Sale and Collection of Loans Held-for-sale Net change in: Increase (Decrease) in Operating Capital [Abstract] Interest receivable Increase (Decrease) in Accrued Interest Receivable, Net Guarantee and commitment fees receivable Increase (Decrease) in Other Receivables Other assets Increase (Decrease) in Other Operating Assets Accrued interest payable Increase (Decrease) in Accrued Liabilities Other liabilities Increase (Decrease) in Other Operating Liabilities Net cash 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] Purchases of available-for-sale investment securities and Farmer Mac Guaranteed Securities and USDA Guaranteed Securities Payments to Acquire Available-for-sale Securities Purchases of loans held for investment Payments to Acquire Loans Held-for-investment Purchases of defaulted loans Proceeds from repayment of available-for-sale investment securities, Farmer Mac Guaranteed Securities and USDA Guaranteed Securities Proceeds from Maturities, Prepayments and Calls of Available-for-sale Securities Proceeds from repayment of loans purchased as held for investment Proceeds from Principal Repayments on Loans and Leases Held-for-investment (Payments)/proceeds from sale of real estate owned Proceeds from Sale of Foreclosed Assets 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] Proceeds from issuance of discount notes and medium-term notes Proceeds from Issuance of Debt Payments to redeem discount notes and medium-term notes Repayments of Debt Excess tax benefits related to stock-based awards Excess Tax Benefit from Share-based Compensation, Financing Activities Payments to third parties on debt securities of consolidated trusts Payments To Third Parties On Debt Securities Of Consolidated Trusts The cash outflows associated with consolidated trusts where Farmer Mac is determined to be the primary beneficiary but trusts are owned by third parties. Proceeds from common stock issuance Proceeds from Issuance of Common Stock Proceeds from Preferred Stock Issuances Proceeds from Issuance of Preferred Stock and Preference Stock Common stock repurchased Payments for Repurchase of Common Stock Retirement of Series C Preferred stock Payments for Repurchase of Preferred Stock and Preference Stock Investment in Contour Proceeds from Noncontrolling Interests Redemption of Farmer Mac II LLC Preferred Stock Payments for Repurchase of Redeemable Preferred Stock Dividends paid - Non-controlling interest - preferred stock Payments of Ordinary Dividends, Noncontrolling Interest Dividends paid on common and preferred stock Payments of Ordinary Dividends Net cash provided by financing activities Net Cash Provided by (Used in) Financing Activities 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 Fair Value Disclosure Fair Value Disclosures [Text Block] Loss Contingencies [Table] Loss Contingencies [Table] Unrecorded maximum potential exposure on guarantees [Axis] Unrecorded maximum potential exposure on guarantees [Axis] Unrecorded maximum potential exposure on guarantees, pertinent information about guarantee obligations issued [Axis] Unrecorded maximum potential exposure on guarantees [Domain] Unrecorded maximum potential exposure on guarantees [Domain] [Domain] for Unrecorded maximum potential exposure on guarantees, pertinent information about guarantee obligations issued [Axis] Guarantee obligations issued after January 1, 2003 [Member] Guarantee obligations issued after January 1, 2003 [Member] Guarantee obligations issued after January 1, 2003 [Member] Guarantee obligations issued prior to January 1, 2003 [Member] Guarantee obligations issued prior to January 1, 2003 [Member] Guarantee obligations issued prior to January 1, 2003 [Member] Loss Contingencies [Line Items] Loss Contingencies [Line Items] Term of Guarantees Minimum Term of Guarantees Minimum Term of Guarantees Minimum Term of Guarantees Maximum Term of Guarantees Maximum Term of Guarantees Maximum Guarantor Obligations, Maximum Exposure, Undiscounted Guarantor Obligations, Maximum Exposure, Undiscounted Additions to the guarantee and commitment obligation(1) Additions to guarantee and commitment obligations Additions to guarantee and commitment obligations Amortization of the guarantee and commitment obligation Amortization of the Guarantee and Commitment Obligation Amortization of the Guarantee and Commitment Obligation Income Statement [Abstract] Interest income: Interest and Dividend Income, Operating [Abstract] Investments and cash equivalents Interest and Dividend Income, Securities, Operating Farmer Mac Guaranteed Securities and USDA Securities Interest Income, Operating Loans Interest and Fee Income, Loans and Leases Total interest income Net interest income after (provision for)/release of allowance for loan losses Non-interest income: Noninterest Income [Abstract] Gains (Losses) on Extinguishment of Debt Non-interest expense: Noninterest Expense [Abstract] Compensation and employee benefits Labor and Related Expense General and administrative General and Administrative Expense Regulatory fees Other General and Administrative Expense Real estate owned operating costs, net Foreclosed Real Estate Expense Non-interest expense Income before income taxes Net income Net income attributable to Farmer Mac Preferred stock dividends Net income attributable to common stockholders Earnings per common share and dividends: Earnings Per Share [Abstract] Schedule of Financing Receivable, Recorded Investment, Credit Quality Indicator [Table] Schedule of Financing Receivable, Recorded Investment, Credit Quality Indicator [Table] Internal Credit Assessment [Axis] Internal Credit Assessment [Axis] Internal Credit Assessment [Domain] Internal Credit Assessment [Domain] Acceptable [Member] Pass [Member] Special Mention [Member] Special Mention [Member] Substandard [Member] Substandard [Member] Financing Receivable, Recorded Investment [Line Items] Financing Receivable, Recorded Investment [Line Items] Zions First National Bank [Member] Zions First National Bank [Member] Zions First National Bank [Member] Related Party Transaction [Axis] Related Party Transaction [Axis] Related Party Transaction [Domain] Related Party Transaction [Domain] Sale of Farmer Mac Guaranteed Securities [Member] Sale of Farmer Mac Guaranteed Securities [Member] Sale of Farmer Mac Guaranteed Securities [Member] Related Party Transaction, Amounts of Transaction Related Party Transaction, Amounts of Transaction Related Party Transaction, Related Party's Percent of Total Program Loans Related Party Transaction, Related Party's Percent of Total Program Loans Related Party Transaction, Related Party's Percent of Total Program Loans Share-based Compensation Expense Allocated Share-based Compensation Expense Debt Disclosure [Abstract] Debt Disclosure [Text Block] Debt Disclosure [Text Block] Proceeds from Stock Options Exercised Proceeds from Stock Options Exercised Employee Service Share-based Compensation, Tax Benefit Realized from Exercise of Stock Options Employee Service Share-based Compensation, Tax Benefit Realized from Exercise of Stock Options Adjustments to Additional Paid in Capital, Share-based Compensation and Exercise of Stock Options Adjustments to Additional Paid in Capital, Share-based Compensation and Exercise of Stock Options Stock Issued During Period, Shares, Other Stock Issued During Period, Shares, Other Stock Issued During Period, Value, Other Stock Issued During Period, Value, Other Number of Board of Directors Number of Board of Directors Number of Board of Directors Summary of Significant Account Policies Basis of Accounting, Policy [Policy Text Block] Principles of Consolidation Consolidation, Policy [Policy Text Block] Cash and Cash Equivalents and Statements of Cash Flows Cash and Cash Equivalents, Policy [Policy Text Block] Transfers of Financial Assets and Liabilities Securities Borrowed and Loaned Policy [Policy Text Block] Investment Securities, Farmer Mac Guaranteed Securities, and USDA Securities Marketable Securities, Policy [Policy Text Block] Loans Receivables, Policy [Policy Text Block] Non-accrual Loans Loans and Leases Receivable, Past Due Status, Policy [Policy Text Block] Securitization of Loans Transfers and Servicing of Financial Assets, Policy [Policy Text Block] Real Estate Owned Loans and Leases Receivable, Real Estate Acquired Through Foreclosure, Policy [Policy Text Block] Financial Derivatives Derivatives, Policy [Policy Text Block] Notes Payable Debt, Policy [Policy Text Block] Allowance for Loan Losses and Reserve for Losses Loans and Leases Receivable, Allowance for Loan Losses Policy [Policy Text Block] Earnings Per Share Earnings Per Share, Policy [Policy Text Block] Income Taxes Income Tax, Policy [Policy Text Block] Stock-Based Compensation Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block] Comprehensive Income Comprehensive Income, Policy [Policy Text Block] Long-Term Standby Purchase Commitments Commitments and Contingencies, Policy [Policy Text Block] Fair Value Measurement Fair Value Measurement, Policy [Policy Text Block] Consolidation of Variable Interest Entities Consolidation, Variable Interest Entity, Policy [Policy Text Block] New Accounting Standards New Accounting Pronouncements, Policy [Policy Text Block] Reclassifications Reclassification, Policy [Policy Text Block] Schedule of Related Party Transactions [Table Text Block] Schedule of Related Party Transactions [Table Text Block] Unrecognized Tax Benefits Unrecognized Tax Benefits Decreases based on tax positions related to prior years Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions Increases based on tax positions related to current year Unrecognized Tax Benefits, Period Increase (Decrease) Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Beginning Balance Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value Purchases Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases Sales Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales Settlements Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements Realized and Unrealized Gains/(Losses) included in Income Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings Unrealized Gains/(Losses) included in Other Comprehen-sive Income Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss) Transfers Out Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3 Ending Balance Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Beginning Balance Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value Purchases Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases Sales Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Sales Settlements Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements Realized and Unrealized Gains/(Losses) included in Income Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings Unrealized Gains/(Losses) included in Other Comprehen-sive Income Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Other Comprehensive Income (Loss) Transfers Out Fair Value, Measurement with Unobservable Inputs Reconciliation, Liability, Transfers out of Level 3 Ending Balance Off-Balance Sheet Guarantees and Long Term Standby Purchase Commitments Disclosure Commitments and Contingencies Disclosure [Text Block] Statement of Comprehensive Income [Abstract] Net unrealized (losses)/gains on available-for sale securities Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, before Tax Net changes in held-to-maturity securities Other Comprehensive Income (Loss), Held-to-Maturity Securities, before tax Other Comprehensive Income (Loss), Held-to-Maturity Securities, before tax Net unrealized (losses)/gains on cash flow hedges Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, before Tax Other comprehensive (loss)/income before tax Other Comprehensive Income (Loss), before Tax Income tax benefit/(expense) related to other comprehensive income Other Comprehensive Income (Loss), Tax Other comprehensive (loss)/income, net of tax Comprehensive income Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Less: comprehensive income attributable to non-controlling interest Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest Comprehensive income/(loss) attributable to Farmer Mac Comprehensive Income (Loss), Net of Tax, Attributable to Parent Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Measurement Basis [Axis] Measurement Basis [Axis] Fair Value Measurement [Domain] Fair Value Measurement [Domain] Portion at Fair Value Measurement [Member] Portion at Fair Value Measurement [Member] Reported Value Measurement [Member] Reported Value Measurement [Member] Estimate of Fair Value Measurement [Member] Estimate of Fair Value Measurement [Member] Long-term Debt [Member] Long-term Debt [Member] Due within one year [Member] Due within one year [Member] Due within one year [Member] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Cash and cash equivalents Cash and Cash Equivalents, Fair Value Disclosure Marketable Securities Marketable Securities, Fair Value Disclosure Marketable Securities, Fair Value Disclosure Loans Loans Receivable, Fair Value Disclosure Financial derivatives Guarantee and commitment fees receivable: Notes payable: Notes Payable, Fair Value Disclosure Debt securities of consolidated trusts held by third parties Variable Interest Entity, Consolidated, Fair Value Disclosure, Liabilities Variable Interest Entity, Consolidated, Fair Value Disclosure, Liabilities Schedule of Held-to-Maturity, Available-for-sale, and Trading Securities [Table] Schedule of Held-to-Maturity, Available-for-sale, and Trading Securities [Table] Schedule of held to maturity, available for sale, and trading securities which includes, but is not limited to changes in the cost basis and fair value, fair value and gross unrealized gain (loss), fair values by type of security, contractual maturity and classification, amortized cost basis and other related disclosures Schedule of Held-to-Maturity, Available-for-sale, and Trading Securities [Line Items] Schedule of Held-to-Maturity, Available-for-sale, and Trading Securities [Line Items] [Line Items] for Schedule of held to maturity, available for sale, and trading securities which includes, but is not limited to changes in the cost basis and fair value, fair value and gross unrealized gain (loss), fair values by type of security, contractual maturity and classification, amortized cost basis and other related disclosures Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] Schedule of Debt [Table Text Block] Schedule of Debt [Table Text Block] Schedule of Long-term Debt Instruments [Table Text Block] Schedule of Long-term Debt Instruments [Table Text Block] Reclassification out of Accumulated Other Comprehensive Income [Table] Reclassification out of Accumulated Other Comprehensive Income [Table] Reclassification out of Accumulated Other Comprehensive Income [Axis] Reclassification out of Accumulated Other Comprehensive Income [Axis] Reclassification out of Accumulated Other Comprehensive Income [Domain] Reclassification out of Accumulated Other Comprehensive Income [Domain] Gain (Loss) on Derivative Instruments [Member] Gain (Loss) on Derivative Instruments [Member] Gain (Loss) on Investments [Member] Gain (Loss) on Investments [Member] Other Income [Member] Other Income [Member] Interest Income [Member] Interest Income [Member] Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] Other Comprehensive Income (Loss), before Reclassifications, before Tax Other Comprehensive Income (Loss), before Reclassifications, before Tax Other Comprehensive Income (Loss) before Reclassifications, Tax Other Comprehensive Income (Loss) before Reclassifications, Tax Other Comprehensive Income (Loss), before Reclassifications, Net of Tax Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax Reclassification from AOCI, Current Period, Tax Reclassification from AOCI, Current Period, Tax Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax Other Comprehensive Income (Loss), before Tax Other Comprehensive Income (Loss), Tax Derivative [Table] Derivative [Table] Financial Instruments Owned and Pledged as Collateral by Type [Axis] Financial Instruments Owned and Pledged as Collateral by Type [Axis] Financial Instruments Owned and Pledged as Collateral, Type [Domain] Financial Instruments Owned and Pledged as Collateral, Type [Domain] Cash [Member] Cash [Member] Interest Rate Swap, Pay Fixed Non-Callable [Member] Interest Rate Swap, Pay Fixed Non-Callable [Member] Interest Rate Swap, Pay Fixed Non-Callable [Member] Interest Rate Swap, Receive Fixed Non-Callable [Member] Interest Rate Swap, Receive Fixed Non-Callable [Member] Interest Rate Swap, Receive Fixed Non-Callable [Member] Interest Rate Swap, Receive Fixed Callable [Member] Interest Rate Swap, Receive Fixed Callable [Member] Interest Rate Swap, Receive Fixed Callable [Member] Basis Swap [Member] Basis Swap [Member] Derivative [Line Items] Derivative [Line Items] Notional Disclosures [Abstract] Notional Disclosures [Abstract] Derivative Asset, Fair Value, Amount Not Offset Against Collateral [Abstract] Derivative Asset, Fair Value, Amount Not Offset Against Collateral [Abstract] Derivative, Average Fixed Interest Rate Derivative, Average Fixed Interest Rate Derivative, Average Variable Interest Rate Derivative, Average Variable Interest Rate Derivative, Variable Interest Rate Derivative, Variable Interest Rate Derivative, Weighted-Average Forward Price Derivative, Weighted-Average Forward 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in Second Year Operating Leases, Future Minimum Payments, Due in Three Years Operating Leases, Future Minimum Payments, Due in Three Years Contractual Obligation, Due in Third Year Contractual Obligation, Due in Third Year Operating Leases, Future Minimum Payments, Due in Four Years Operating Leases, Future Minimum Payments, Due in Four Years Contractual Obligation, Due in Fourth Year Contractual Obligation, Due in Fourth Year Operating Leases, Future Minimum Payments, Due in Five Years Operating Leases, Future Minimum Payments, Due in Five Years Contractual Obligation, Due in Fifth Year Contractual Obligation, Due in Fifth Year Operating Leases, Future Minimum Payments, Due Thereafter Operating Leases, Future Minimum Payments, Due Thereafter Contractual Obligation, Due after Fifth Year Contractual Obligation, Due after Fifth Year Operating Leases, Future Minimum Payments Due Operating Leases, Future Minimum Payments Due Contractual Obligation Contractual Obligation Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block] Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block] Derivative Instruments and Hedging Activities Disclosure Derivative Instruments and Hedging Activities Disclosure [Text Block] Stock Repurchase Program, Authorized Amount Stock Repurchase Program, Authorized Amount Stock Repurchased and Retired During Period, Value Common Stock, Dividends, Per Share, Cash Paid Common Stock, Dividends, Per Share, Cash Paid Extinguishment of Debt, Amount Extinguishment of Debt, Amount Tax expense at statutory rate Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount Non-taxable dividend income Effective Income Tax Rate Reconciliation, Tax Exempt Income, Amount Income from non-controlling interest Effective Income Tax Rate Reconciliation, Noncontrolling Interest Income (Loss), Amount Loss on retirement of preferred stock Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount Valuation allowance Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount Other Effective Income Tax Rate Reconciliation, Other Adjustments, Amount Statutory tax rate Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent Trading Securities [Table] Trading Securities [Table] Schedule of Trading Securities and Other Trading Assets [Line Items] Schedule of Trading Securities and Other Trading Assets [Line Items] Trading Securities, Weighted-Average Yield Trading Securities, Weighted-Average Yield Trading Securities, Weighted-Average Yield Derivative Instrument [Axis] Derivative Instrument [Axis] Derivative Contract [Domain] Derivative Contract [Domain] Transaction Type [Axis] Transaction Type [Axis] Transaction [Domain] Transaction [Domain] Exchange Cleared [Member] Exchange Cleared [Member] Securities Pledged as Collateral [Member] Securities Pledged as Collateral [Member] Type of Arrangement and Non-arrangement Transactions [Axis] Type of Arrangement and Non-arrangement Transactions [Axis] Arrangements and Non-arrangement Transactions [Domain] Arrangements and Non-arrangement Transactions [Domain] Excluding netting [Member] Excluding netting [Member] Excluding netting [Member] Netting [Member] Netting [Member] Netting [Member] Uncollateralized [Member] Uncollateralized [Member] Including accrued interest [Member] Including accrued interest [Member] Including accrued interest [Member] Securities Purchased under Agreements to Resell Securities Purchased under Agreements to Resell Credit exposure to interest rate swap counterparties Credit exposure to interest rate swap counterparties Credit exposure to interest rate swap counterparties Collateral Received Additional Collateral, Aggregate Fair Value Additional Collateral, Aggregate Fair Value Net income attributable to common stockholders (Dilutive) Net Income (Loss) Available to Common Stockholders, Diluted Stock options, SARs and restricted stock Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements Earnings Per Share, On Incremental Common Shares Attributable to Share-based Payment Arrangements Earnings Per Share, On Incremental Common Shares Attributable to Share-based Payment Arrangements Earnings Per Share, On Incremental Common Shares Attributable to Share-based Payment Arrangements Weighted Average Number of Shares Outstanding, Diluted Weighted Average Number of Shares Outstanding, Diluted Diluted earnings per common share Earnings Per Share, Basic [Abstract] Earnings Per Share, Basic [Abstract] Weighted Average Number of Shares Outstanding, Basic Weighted Average Number of Shares Outstanding, Basic Held-to-Maturity Securities [Abstract] Held-to-maturity Securities [Abstract] Held-to-Maturity Unpaid Principal Balance Held-to-Maturity Unpaid Principal Balance Held-to-Maturity Unpaid Principal Balance Held-to-maturity Securities, Amortized Cost before Other than Temporary Impairment Held-to-maturity Securities, Amortized Cost before Other than Temporary Impairment Held to Maturity; Unrealized Holding Gains Held-to-maturity Securities, Accumulated Unrecognized Holding Gain Held to Maturity - Unrealized Holding Loss Held-to-maturity Securities, Accumulated Unrecognized Holding Loss Held-to-maturity Securities, Fair Value Held-to-maturity Securities, Fair Value Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax Trading Securities Unpaid Principal Balance Trading Securities Unpaid Principal Balance Trading Securities Unpaid Principal Balance Trading Securities, Unrealized Holding Loss Schedule of Product Information [Table] Schedule of Product Information [Table] Product Information [Line Items] Product Information [Line Items] On and Off Balance Sheet Program Assets, At Principal Balance On and Off Balance Sheet Program Assets, At Principal Balance On and Off Balance Sheet Program Assets, At Principal Balance Notes Payable Notes Payable Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Antidilutive Securities [Axis] Antidilutive Securities [Axis] Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Stock Options and SARs [Members] Stock Options and Stock Appreciation Rights [Member] Stock Options and Stock Appreciation Rights [Member] Performance Shares [Member] Performance Shares [Member] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Net Income (Loss) Available to Common Stockholders, Diluted Antidilutive securities excluded from earnings per share (shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value [Abstract] Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value [Abstract] Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value Held-to-maturity Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value Held-to-maturity Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value Held-to-maturity Securities, Continuous Unrealized Loss Position, Accumulated Loss [Abstract] Held-to-maturity Securities, Continuous Unrealized Loss Position, Accumulated Loss [Abstract] Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss Held-to-maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss Held-to-maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract] Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract] Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss [Abstract] Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss [Abstract] Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions [Abstract] Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions [Abstract] Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Greater than or Equal to One Year Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Greater than or Equal to One Year Held-to-maturity Securities, Continuous Unrealized Loss Position, Qualitative Disclosure [Abstract] Held-to-maturity Securities, Continuous Unrealized Loss Position, Qualitative Disclosure [Abstract] Held-to-maturity, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions Held-to-maturity, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions Security Owned and Sold, Not yet Purchased Fair Value, Security Sold, Not yet Purchased Security Owned and Sold, Not yet Purchased Fair Value, Security Sold, Not yet Purchased Vested or Expected to Vest Stock Options and SARs Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number Vested and Expected to Vest Options and SARs, Exercisable, Weighted Average Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Weighted Average Exercise Price Options, SARs, and non-vested restricted stock Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value Options and SARs Exercises in Period, Intrinsic Value Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value Compensation Cost Not yet Recognized Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition Weighted Average Grant Date Fair Value of Options SARs and restricted stock awards Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term, Simplified Method Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term, Simplified Method Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate Business Segment Reporting Disclosure Segment Reporting Disclosure [Text Block] Schedule of Short-term and Long-term Borrowings [Table] Schedule of Short-term and Long-term Borrowings [Table] Schedule of Short-term and Long-term Borrowings [Table] interest rate reset date [Axis] interest rate reset date [Axis] interest rate reset date [Axis] interest rate reset date [Domain] interest rate reset date [Domain] [Domain] for interest rate reset date [Axis] Due year two [Member] Due year two [Member] Due year two [Member] Due year three [Member] Due year three [Member] Due year three [Member] Due year four [Member] Due year four [Member] Due year four [Member] Due year five [Member] Due year five [Member] Due year five [Member] Due after five years [Member] Due after five years [Member] Due after five years [Member] Schedule of Short-term and Long-term Borrowings [Line Items] Schedule of Short-term and Long-term Borrowings [Line Items] [Line Items] for Schedule of Short-term and Long-term Borrowings [Table] Meduim Term Notes Called During the Period Meduim Term Notes Called During the Period Meduim Term Notes Called During the Period Short-term Debt, Weighted Average Interest Rate Short-term Debt, Weighted Average Interest Rate Long-term Debt, Maturities, Repayments of Principal in Year Two Long-term Debt, Maturities, Repayments of Principal in Year Two Long-term Debt, Maturities, Repayments of Principal in Year Three Long-term Debt, Maturities, Repayments of Principal in Year Three Long-term Debt, Maturities, Repayments of Principal in Year Four Long-term Debt, 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Option Plans, Exercise Price Range [Domain] Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Domain] $5.00 to $9.99 [Member] $5.00 to $9.99 [Member] $5.00 to $9.99 [Member] $10.00 to $14.99 [Member] $10.00 to $14.99 [Member] $10.00 to $14.99 [Member] $15.00 - $19.99 [Member] $15.00 - $19.99 [Member] $15.00 - $19.99 [Member] $20.00 to $24.99 [Member] $20.00 to $24.99 [Member] $20.00 to $24.99 [Member] $25.00 to $29.99 [Member] $25.00 to $29.99 [Member] $25.00 to $29.99 [Member] $30.00 to $34.99 [Member] $30.00 to $34.99 [Member] $30.00 to $34.99 [Member] $35.00 to $39.99 [Member] $35.00 to $39.99 [Member] $35.00 to $39.99 Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Weighted Average Remaining Contractual Life Stock Options and SARs Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Weighted Average Remaining Contractual Life Stock Options and SARs - Exercisable Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Weighted Average Remaining Contractual Life Stock Options and SARs Vested and Expected to Vest Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term Weighted Average Remaining Contractual Life Outstanding Non-Vested Restricted Stock Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Outstanding, Weighted Average Remaining Contractual Terms Weighted Average Remaining Contractual LIfe Expected to Vest Restricted Stock Share-Based Compensation Arrangement by Share-based payment award,Other than Options,Vested and Expected to Vest,Outstanding,Weighted Average Contractual Life Term Weighted average remaining contractual term for equity-based awards excluding options expected to vest, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Equity Disclosure Stockholders' Equity Note Disclosure [Text Block] Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Corporate Segment [Member] Corporate Segment [Member] Segment Reconciling Items [Member] Segment Reconciling Items [Member] Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Segment Reporting Information, Profit (Loss) [Abstract] Segment Reporting Information, Profit (Loss) [Abstract] Interest Income Reclassification Interest Income Reclassification Interest Income Reclassification Total interest expense Net effective spread Other Non-Interest Income (Expense), Excluding Guarantee and Commitment Fees Other Non-Interest Income (Expense), Excluding Guarantee and Commitment Fees Other Non-Interest Income (Expense), Excluding Guarantee and Commitment Fees (Release of)/provision for reserve for losses Noninterest Expense, Excluding Loan, Lease and Other Losses Noninterest Expense, Excluding Loan, Lease and Other Losses Noninterest Expense, Excluding Loan, Lease and Other Losses Non-interest expense Segment core earnings before income taxes Segment core earnings before income taxes Segment core earnings before income taxes adjusted for reconciling items for segment reporting Income tax expense Segment core earnings before preferred stock dividends and attibution of income to non-controlling interest - preferred stock dividends Segment core earnings before preferred stock dividends and attibution of income to non-controlling interest - preferred stock dividends Segment core earnings before preferred stock dividends and attibution of income to non-controlling interest - preferred stock dividends Net income Segment core earnings Segment core earnings Segment core earnings - net income(loss) available to common shareholders, basic, adjusted for reconciling items related to segment reporting Segment Reporting Information, Additional Information [Abstract] Segment Reporting Information, Additional Information [Abstract] Assets Schedule of Defined Benefit Plans Disclosures [Table] Schedule of Defined Benefit Plans Disclosures [Table] Defined Contribution Plan Name [Axis] Defined Contribution Plan Name [Axis] Defined Contribution Plan Name [Domain] Defined Contribution Plan Name [Domain] Base Percentage [Member] Base Percentage [Member] Base Percentage [Member] Excess Percentage for amounts above Social Security taxable wage base] [Member] Excess Percentage for amounts above Social Security taxable wage base] [Member] Excess Percentage for amounts above Social Security taxable wage base] [Member] Defined Benefit Plan Disclosure [Line Items] Defined Benefit Plan Disclosure [Line Items] Employer contribution percentage to retirement plan Employer contribution percentage to retirement plan Employer contribution percentage to retirement plan Defined Contribution Plan Wage Base Defined Contribution Plan Wage Base Defined Contribution Plan Wage Base Deferred Compensation Arrangement with Individual, Requisite Service Period Deferred Compensation Arrangement with Individual, Requisite Service Period Defined Contribution Plan, Cost Recognized Defined Contribution Plan, Cost Recognized Term of grant [Axis] Term of grant [Axis] Term of grant [Axis] Term of grant [Domain] Term of grant [Domain] [Domain] for Term of grant [Axis] Officers and certain employees [Member] Officers and certain employees [Member] Officers and certain employees [Member] Share-based Compensation Arrangement by Share-based Payment Award, Terms of Award Share-based Compensation Arrangement by Share-based Payment Award, Terms of Award Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit Off-Balance Sheet Guaranteed Securities [Table] Long-term Purchase Commitment [Table] Farm & Ranch Loans and USDA Guarantees [Member] Farm & Ranch Loans and USDA Guarantees [Member] Farm & Ranch Loans and USDA Guarantees [Member] Rural Utilities Loans [Member] Rural Utilities Loans [Member] Rural Utilities Loans [Member] Long-term Purchase Commitment [Line Items] Long-term Purchase Commitment [Line Items] Loans and Leases Receivable, Commitments to Purchase or Sell Loans and Leases Receivable, Commitments to Purchase or Sell Operating Loss Carryforwards [Table] Operating Loss Carryforwards [Table] Tax Credit Carryforward [Axis] Tax Credit Carryforward [Axis] Tax Credit Carryforward, Name [Domain] Tax Credit Carryforward, Name [Domain] Expired Capital Loss Carryforward [Member] Expired Capital Loss Carryforward [Member] Expired Capital Loss Carryforward [Member] Operating Loss Carryforwards [Line Items] Operating Loss Carryforwards [Line Items] Deferred Tax Assets, Valuation Allowance Tax Credit Carryforward, Amount Tax Credit Carryforward, Amount Schedule of Cash Flow, Supplemental Disclosures Schedule of Cash Flow, Supplemental Disclosures [Table Text Block] Earnings Per Common Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Reclassification out of Accumulated Other Comprehensive Income [Table Text Block] Reclassification out of Accumulated Other Comprehensive Income [Table Text Block] Schedule of Variable Interest Entities Schedule of Variable Interest Entities [Table Text Block] Debt Instrument [Axis] Debt Instrument [Axis] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Call Option [Member] Call Option [Member] Short-term Debt, Average Outstanding Amount Short-term Debt, Average Outstanding Amount Debt Instrument, Interest Rate During Period Debt Instrument, Interest Rate During Period Long-term Debt, Current Maturities Long-term Debt, Current Maturities Long-term Debt, Excluding Current Maturities Long-term Debt, Excluding Current Maturities Short-term Debt, Maximum Month-end Outstanding Amount Short-term Debt, Maximum Month-end Outstanding Amount Schedule of Variable Interest Entities [Table] Schedule of Variable Interest Entities [Table] Variable Interest Entities [Axis] Variable Interest Entities [Axis] Variable Interest Entity, Classification [Domain] Variable Interest Entity, Classification [Domain] Variable Interest Entity [Line Items] Variable Interest Entity [Line Items] Other Liabilities Other Liabilities Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets and Liabilities, Net Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets and Liabilities, Net Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount Fair Value Adjustment Fair Value Adjustment Fair Value Adjustment Unsecuritized [Member] Unsecuritized [Member] Unsecuritized, no in a trust[Member] In Consolidated Trusts Loans and Lease Receivable Unpaid Principal Balance Loans and Lease Receivable Unpaid Principal Balance Unpaid principal balance of loans before unamortized premiums, discounts and other cost basis adjustments Unamortized premiums, discounts and other cost basis adjustments Unamortized Loan Commitment and Origination Fees and Unamortized Discounts or Premiums Allowance for Loan and Lease Losses, Real Estate Total loans, net of allowance Other Significant Noncash Transactions [Table] Other Significant Noncash Transactions [Table] Other Significant Noncash Transactions [Line Items] Other Significant Noncash Transactions [Line Items] Interest Paid Interest Paid Income Taxes Paid Income Taxes Paid Non-cash activity: Noncash Investing and Financing Items [Abstract] Real estate owned acquired through loan liquidation SEC Schedule III, Real Estate, Acquisitions Through Foreclosures Consolidation of Farm & Ranch Guaranteed Securities from off-balance sheet to loans held for investment in consolidated trusts and to debt securities of consolidated trusts held by third parties Consolidation of guaranteed securities from off-balance sheet to Loans Held for Investment and Debt Securities of consolidated trusts held by third parties Consolidation of guaranteed securities from off-balance sheet to Loans Held for Investment and Debt Securities of consolidated trusts held by third parties Purchases of securities - traded, not yet settled Purchases of Investment Securities Traded, Not Yet Settled Purchases of Investment Securities Traded, Not Yet Settled Unsettled common stock repurchases Unsettled Class C Common Stock Repurchases Unsettled Class C Common Stock Repurchases during the period as part of the Share Repurchase Program. Transfers of loans held for sale to loans held for investment Deconsolidation of loans held for investment in consolidated trusts and debt securities of consolidated trusts held by third parties - transferred to off-balance sheet F&R Guaranteed Securities Deconsolidation of loans held for investment in consolidated trusts and debt securities of consolidated trusts held by third parties - transferred to off-balance sheet F&R Guaranteed Securities Transfers of available-for-sale Farmer Mac Guaranteed Securities to held-to-maturity Transfer of Farmer Mac Guaranteed Securities - Available-for-sale to Held-to-maturity; Unrealized holding gains Transfer of Farmer Mac Guaranteed Securities - Available-for-sale to Held-to-maturity; Unrealized holding gains Transfer of Farmer Mac Guaranteed Securities - Available-for-sale to Held-to-maturity; Unrealized holding gains Transfer of Loans Held-for-sale to Loans Held-for Investment, unamortized discount Transfer of Loans Held-for-sale to Loans Held-for Investment, unamortized discount Transfer of Loans Held-for-sale to Loans Held-for Investment, unamortized discount Schedule of Segment Reporting Information, by Segment [Table Text Block] Schedule of Segment Reporting Information, by Segment [Table Text Block] Line of Credit Facility, Maximum Borrowing Capacity Line of Credit Facility, Maximum Borrowing Capacity Marketable Securities [Table Text Block] Credit Rating, Standard & Poor's [Axis] Credit Rating, Standard & Poor's [Axis] External Credit Rating, Standard & Poor's [Domain] External Credit Rating, Standard & Poor's [Domain] Standard & Poor's, A- Rating [Member] Standard & Poor's, A- Rating [Member] Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract] Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract] Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss [Abstract] Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss [Abstract] Available-for-Sale Continuous Unrealized Loss Position Less than 12 Months, Aggregate Losses Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses Available-for-sale Securities, Continuous Unrealized Loss Position, Qualitative Disclosure [Abstract] Available-for-sale Securities, Continuous Unrealized Loss Position, Qualitative Disclosure [Abstract] Available-for-sale securities in a loss position for more than 12 months, qualitative disclosure, percent of amortized cost Available-for-sale securities in a loss position for more than 12 months, qualitative disclosure, percent of amortized cost Available-for-sale securities in a loss position for more than 12 months, qualitative disclosure, percent of amortized cost Schedule of Held-to-maturity Securities [Table] Schedule of Held-to-maturity Securities [Table] Schedule of Held-to-maturity Securities [Line Items] Schedule of Held-to-maturity Securities [Line Items] Held-to-maturity Securities, Debt Maturities [Abstract] Held-to-maturity Securities, Debt Maturities [Abstract] Held-to-maturity Securities, Debt Maturities, Net Carrying Amount [Abstract] Held-to-maturity Securities, Debt Maturities, Net Carrying Amount [Abstract] Held-to-maturity Securities, Debt Maturities, Single Maturity Date, Amortized Cost Basis [Abstract] Held-to-maturity Securities, Debt Maturities, Single Maturity Date, Amortized Cost Basis [Abstract] Held-to-maturity Securities, Debt Maturities, within One Year, Net Carrying Amount Held-to-maturity Securities, Debt Maturities, within One Year, Net Carrying Amount Held-to-maturity Securities, Debt Maturities, after One Through Five Years, Net Carrying Amount Held-to-maturity Securities, Debt Maturities, after One Through Five Years, Net Carrying Amount Held-to-maturity Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract] Held-to-maturity Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract] Held-to-maturity Securities, Debt Maturities, Single Maturity Date, Fair Value [Abstract] Held-to-maturity Securities, Debt Maturities, Single Maturity Date, Fair Value [Abstract] Held-to-maturity Securities, Debt Maturities, Next Twelve Months, Fair Value Held-to-maturity Securities, Debt Maturities, Next Twelve Months, Fair Value Held-to-maturity Securities, Debt Maturities, Year Two Through Five, Fair Value Held-to-maturity Securities, Debt Maturities, Year Two Through Five, Fair Value Held to Maturity Securities Weighted Average Yield Held to Maturity Securities Weighted Average Yield [Abstract] Held to Maturity Securities Weighted Average Yield [Abstract] Held-to-Maturity Securities, Debt Maturities, Weighted Average Yield, Single Maturity Date [Abstract] Held-to-Maturity Securities, Debt Maturities, Weighted Average Yield, Single Maturity Date [Abstract] Held-to-Maturity Securities, Debt Maturities, Weighted Average Yield, Single Maturity Date [Abstract] Held-to-Maturity Securities, Debt Maturities, Next Twelve Months, Weighted-Average Yield Held-to-Maturity Securities, Debt Maturities, Next Twelve Months, Weighted-Average Yield Held-to-Maturity Securities, Debt Maturities, Next Twelve Months, Weighted-Average Yield Held-to-Maturity Securities, Debt Maturities, Year Two Through Five, Weighted-Average Yield Held-to-Maturity Securities, Debt Maturities, Year Two Through Five, Weighted-Average Yield Held-to-Maturity Securities, Debt Maturities, Year Two Through Five, Weighted-Average Yield Held-to-Maturity Securities, Debt Maturities, Weighted-Average Yield Held-to-Maturity Securities, Debt Maturities, Weighted-Average Yield Held-to-Maturity Securities, Debt Maturities, Weighted-Average Yield