FARMER MAC GUARANTEED SECURITIES AND USDA SECURITIES - Schedule of On-Balance Sheet Securities (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
Jun. 30, 2025	Dec. 31, 2024
Farmer Mac Guaranteed Securities
Available-for-sale:
Unpaid Principal Balance	$ 5,934,100	$ 5,826,948
Amortized Cost	5,942,469	5,835,658
Allowance for losses	(192)	(236)
Unrealized Gains	23,843	6,600
Unrealized Losses	(234,617)	(327,476)
Fair Value	5,731,503	5,514,546
Held-to-maturity:
Amortized Cost	2,130,995	2,717,688
Farmer Mac Guaranteed Securities \| Available-for-Sale Securities
Available-for-sale:
Unamortized Premium/(Discount)	8,369	8,710
Held-to-maturity:
Unamortized Premium/(Discount)	8,369	8,710
Trading:
Unamortized Premium/(Discount)	8,369	8,710
Farmer Mac Guaranteed Securities \| Farmer Mac Guaranteed Securities
Available-for-sale:
Unpaid Principal Balance	0	0
Amortized Cost	8,369	8,710
Allowance for losses	0	0
Unrealized Gains	244	305
Unrealized Losses	0	0
Fair Value	8,613	9,015
Farmer Mac Guaranteed Securities \| Farmer Mac Guaranteed Securities \| Available-for-Sale Securities
Available-for-sale:
Unamortized Premium/(Discount)	8,369	8,710
Held-to-maturity:
Unamortized Premium/(Discount)	8,369	8,710
Trading:
Unamortized Premium/(Discount)	8,369	8,710
Farmer Mac Guaranteed Securities
Available-for-sale:
Amortized Cost	5,942,469
Fair Value	5,731,503
Held-to-maturity:
Unpaid Principal Balance	2,156,886	2,744,767
Amortized Cost	2,131,164	2,717,866
Allowance for losses	(169)	(178)
Unrealized Gains	9,423	6,224
Unrealized Losses	(14,636)	(22,812)
Fair Value	2,125,782	2,701,100
Farmer Mac Guaranteed Securities \| Held-to-Maturity Securities
Available-for-sale:
Unamortized Premium/(Discount)	(25,722)	(26,901)
Held-to-maturity:
Unamortized Premium/(Discount)	(25,722)	(26,901)
Trading:
Unamortized Premium/(Discount)	(25,722)	(26,901)
Farmer Mac Guaranteed Securities \| Farmer Mac Guaranteed Securities
Available-for-sale:
Fair Value	8,600	9,000
Trading:
Derivative, notional amount	214,200	228,000
USDA Securities
Held-to-maturity:
Unpaid Principal Balance	2,388,895	2,351,334
Amortized Cost	2,406,638	2,370,534
Allowance for losses	0	0
Unrealized Gains	6,144	180
Unrealized Losses	(210,212)	(258,190)
Fair Value	2,202,570	2,112,524
Trading:
Unpaid Principal Balance	552	814
Amortized Cost	585	856
Allowance for losses	0	0
Unrealized Gains	0	0
Unrealized Losses	(25)	(38)
Fair Value	$ 560	$ 818
Trading securities, weighted-average yield	5.63%	5.47%
USDA Securities \| Held-to-Maturity Securities
Available-for-sale:
Unamortized Premium/(Discount)	$ 17,743	$ 19,200
Held-to-maturity:
Unamortized Premium/(Discount)	17,743	19,200
Trading:
Unamortized Premium/(Discount)	17,743	19,200
USDA Securities \| Trading Securities
Available-for-sale:
Unamortized Premium/(Discount)	33	42
Held-to-maturity:
Unamortized Premium/(Discount)	33	42
Trading:
Unamortized Premium/(Discount)	33	42
Farmer Mac Guaranteed Securities and USDA Securities
Held-to-maturity:
Unpaid Principal Balance	4,545,781	5,096,101
Amortized Cost	4,537,802	5,088,400
Allowance for losses	(169)	(178)
Unrealized Gains	15,567	6,404
Unrealized Losses	(224,848)	(281,002)
Fair Value	4,328,352	4,813,624
Farmer Mac Guaranteed Securities and USDA Securities \| Held-to-Maturity Securities
Available-for-sale:
Unamortized Premium/(Discount)	(7,979)	(7,701)
Held-to-maturity:
Unamortized Premium/(Discount)	(7,979)	(7,701)
Trading:
Unamortized Premium/(Discount)	(7,979)	(7,701)
AgVantage
Trading:
Available-for-sale, accrued interest excluded	63,900	57,500
Held-to-maturity, accrued interest excluded	46,600	59,800
AgVantage \| Farmer Mac Guaranteed Securities
Available-for-sale:
Unpaid Principal Balance	5,934,100	5,826,948
Amortized Cost	5,934,100	5,826,948
Allowance for losses	(192)	(236)
Unrealized Gains	23,599	6,295
Unrealized Losses	(234,617)	(327,476)
Fair Value	5,722,890	5,505,531
AgVantage \| Farmer Mac Guaranteed Securities \| Available-for-Sale Securities
Available-for-sale:
Unamortized Premium/(Discount)	0	0
Held-to-maturity:
Unamortized Premium/(Discount)	0	0
Trading:
Unamortized Premium/(Discount)	0	0
AgVantage \| Farmer Mac Guaranteed Securities
Held-to-maturity:
Unpaid Principal Balance	2,087,686	2,694,492
Amortized Cost	2,061,940	2,667,564
Allowance for losses	(169)	(178)
Unrealized Gains	8,740	5,978
Unrealized Losses	(13,435)	(21,592)
Fair Value	2,057,076	2,651,772
AgVantage \| Farmer Mac Guaranteed Securities \| Held-to-Maturity Securities
Available-for-sale:
Unamortized Premium/(Discount)	(25,746)	(26,928)
Held-to-maturity:
Unamortized Premium/(Discount)	(25,746)	(26,928)
Trading:
Unamortized Premium/(Discount)	(25,746)	(26,928)
Farmer Mac Guaranteed USDA Securities \| Farmer Mac Guaranteed Securities
Held-to-maturity:
Unpaid Principal Balance	69,200	50,275
Amortized Cost	69,224	50,302
Allowance for losses	0	0
Unrealized Gains	683	246
Unrealized Losses	(1,201)	(1,220)
Fair Value	68,706	49,328
Farmer Mac Guaranteed USDA Securities \| Farmer Mac Guaranteed Securities \| Held-to-Maturity Securities
Available-for-sale:
Unamortized Premium/(Discount)	24	27
Held-to-maturity:
Unamortized Premium/(Discount)	24	27
Trading:
Unamortized Premium/(Discount)	$ 24	$ 27

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