FARMER MAC GUARANTEED SECURITIES AND USDA SECURITIES - Schedule of On-Balance Sheet Securities (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023
Trading:
Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration]	Accrued interest receivable (includes $28,563 and $16,764, respectively, related to consolidated trusts)	Accrued interest receivable (includes $28,563 and $16,764, respectively, related to consolidated trusts)
Farmer Mac Guaranteed Securities
Held-to-maturity:
Unpaid Principal Balance	$ 2,744,767	$ 4,242,867
Amortized cost	2,717,866	4,213,278
Allowance for losses	(178)	(209)
Unrealized Gains	6,224	4,783
Unrealized Losses	(22,812)	(40,257)
Fair Value	2,701,100	4,177,595
Available-for-sale:
Amortized cost	5,835,658
Fair Value	5,514,546
USDA Securities
Held-to-maturity:
Unpaid Principal Balance	2,351,334	2,331,093
Amortized cost	2,370,534	2,354,171
Allowance for losses	0	0
Unrealized Gains	180	417
Unrealized Losses	(258,190)	(319,783)
Fair Value	2,112,524	2,034,805
Trading:
Unpaid Principal Balance	814	1,236
Amortized Cost	856	1,300
Allowance for losses	0	0
Unrealized Gains	0	0
Unrealized Losses	(38)	(59)
Fair Value	818	$ 1,241
Trading securities, weighted-average yield		5.46%
Farmer Mac Guaranteed Securities and USDA Securities
Held-to-maturity:
Unpaid Principal Balance	5,096,101	$ 6,573,960
Amortized cost	5,088,400	6,567,449
Allowance for losses	(178)	(209)
Unrealized Gains	6,404	5,200
Unrealized Losses	(281,002)	(360,040)
Fair Value	4,813,624	6,212,400
Farmer Mac Guaranteed Securities
Held-to-maturity:
Amortized cost	2,717,688	4,213,069
Available-for-sale:
Unpaid Principal Balance	5,826,948	5,816,024
Amortized cost	5,835,658	5,825,433
Allowance for losses	(236)	(317)
Unrealized Gains	6,600	16,774
Unrealized Losses	(327,476)	(309,411)
Fair Value	5,514,546	5,532,479
Held-to-Maturity Securities \| Farmer Mac Guaranteed Securities
Held-to-maturity:
Unamortized Premium/(Discount)	(26,901)	(29,589)
Available-for-sale:
Unamortized Premium/(Discount)	(26,901)	(29,589)
Trading:
Unamortized Premium/(Discount)	(26,901)	(29,589)
Held-to-Maturity Securities \| USDA Securities
Held-to-maturity:
Unamortized Premium/(Discount)	19,200	23,078
Available-for-sale:
Unamortized Premium/(Discount)	19,200	23,078
Trading:
Unamortized Premium/(Discount)	19,200	23,078
Held-to-Maturity Securities \| Farmer Mac Guaranteed Securities and USDA Securities
Held-to-maturity:
Unamortized Premium/(Discount)	(7,701)	(6,511)
Available-for-sale:
Unamortized Premium/(Discount)	(7,701)	(6,511)
Trading:
Unamortized Premium/(Discount)	(7,701)	(6,511)
Available-for-Sale Securities \| Farmer Mac Guaranteed Securities
Held-to-maturity:
Unamortized Premium/(Discount)	8,710	9,409
Available-for-sale:
Unamortized Premium/(Discount)	8,710	9,409
Trading:
Unamortized Premium/(Discount)	8,710	9,409
Trading Securities \| USDA Securities
Held-to-maturity:
Unamortized Premium/(Discount)	42	64
Available-for-sale:
Unamortized Premium/(Discount)	42	64
Trading:
Unamortized Premium/(Discount)	42	64
Farmer Mac Guaranteed Securities \| Farmer Mac Guaranteed Securities
Available-for-sale:
Fair Value	9,000	9,800
Trading:
Derivative, notional amount	228,000	238,400
Farmer Mac Guaranteed Securities \| Farmer Mac Guaranteed Securities
Available-for-sale:
Unpaid Principal Balance	0	0
Amortized cost	8,710	9,409
Allowance for losses	0	0
Unrealized Gains	305	358
Unrealized Losses	0	0
Fair Value	9,015	9,767
Farmer Mac Guaranteed Securities \| Available-for-Sale Securities \| Farmer Mac Guaranteed Securities
Held-to-maturity:
Unamortized Premium/(Discount)	8,710	9,409
Available-for-sale:
Unamortized Premium/(Discount)	8,710	9,409
Trading:
Unamortized Premium/(Discount)	8,710	9,409
AgVantage
Trading:
Available-for-sale, accrued interest excluded	57,500	47,200
Held-to-maturity, accrued interest excluded	59,800	67,400
AgVantage \| Farmer Mac Guaranteed Securities
Held-to-maturity:
Unpaid Principal Balance	2,694,492	4,206,324
Amortized cost	2,667,564	4,176,702
Allowance for losses	(178)	(209)
Unrealized Gains	5,978	4,676
Unrealized Losses	(21,592)	(39,451)
Fair Value	2,651,772	4,141,718
AgVantage \| Farmer Mac Guaranteed Securities
Available-for-sale:
Unpaid Principal Balance	5,826,948	5,816,024
Amortized cost	5,826,948	5,816,024
Allowance for losses	(236)	(317)
Unrealized Gains	6,295	16,416
Unrealized Losses	(327,476)	(309,411)
Fair Value	5,505,531	5,522,712
AgVantage \| Held-to-Maturity Securities \| Farmer Mac Guaranteed Securities
Held-to-maturity:
Unamortized Premium/(Discount)	(26,928)	(29,622)
Available-for-sale:
Unamortized Premium/(Discount)	(26,928)	(29,622)
Trading:
Unamortized Premium/(Discount)	(26,928)	(29,622)
AgVantage \| Available-for-Sale Securities \| Farmer Mac Guaranteed Securities
Held-to-maturity:
Unamortized Premium/(Discount)	0	0
Available-for-sale:
Unamortized Premium/(Discount)	0	0
Trading:
Unamortized Premium/(Discount)	0	0
Farmer Mac Guaranteed USDA Securities \| Farmer Mac Guaranteed Securities
Held-to-maturity:
Unpaid Principal Balance	50,275	36,543
Amortized cost	50,302	36,576
Allowance for losses	0	0
Unrealized Gains	246	107
Unrealized Losses	(1,220)	(806)
Fair Value	$ 49,328	35,877
Farmer Mac Guaranteed USDA Securities \| USDA Securities
Trading:
Trading securities, weighted-average yield	5.47%
Farmer Mac Guaranteed USDA Securities \| Held-to-Maturity Securities \| Farmer Mac Guaranteed Securities
Held-to-maturity:
Unamortized Premium/(Discount)	$ 27	33
Available-for-sale:
Unamortized Premium/(Discount)	27	33
Trading:
Unamortized Premium/(Discount)	$ 27	$ 33

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