FARMER MAC GUARANTEED SECURITIES AND USDA SECURITIES - Unrealized Loss Position (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Unrealized loss position for less than 12 months
Unrealized loss position for less than 12 months, fair value	$ 1,859,962	$ 1,143,468
Unrealized loss position for less than 12 months, unrealized loss	(22,477)	(9,278)
Unrealized loss position for more than 12 months
Unrealized loss position for more than 12 months, fair value	2,049,525	2,611,155
Unrealized loss position for more than 12 months, unrealized loss	(139,112)	(141,743)
Operating Segments
Unrealized loss position for less than 12 months
Unrealized loss position for less than 12 months, fair value	1,152,227	508,182
Unrealized loss position for less than 12 months, unrealized loss	(12,889)	(5,716)
Unrealized loss position for more than 12 months
Unrealized loss position for more than 12 months, fair value	3,649,845	4,043,431
Unrealized loss position for more than 12 months, unrealized loss	(314,587)	(303,695)
Farmer Mac Guaranteed Securities and USDA Securities
Unrealized loss position for less than 12 months
Fair Value	1,038,050	2,070,770
Unrealized Loss	(4,019)	(6,705)
Unrealized loss position for more than 12 months
Fair Value	3,295,229	2,757,541
Unrealized Loss	(276,983)	(353,335)
USDA Securities
Unrealized loss position for less than 12 months
Fair Value	8,938	0
Unrealized Loss	(164)	0
Unrealized loss position for more than 12 months
Fair Value	2,099,695	2,023,801
Unrealized Loss	(258,026)	(319,783)
AgVantage | Farmer Mac Guaranteed Securities
Unrealized loss position for less than 12 months
Fair Value	998,200	2,070,770
Unrealized Loss	(3,326)	(6,705)
Unrealized loss position for more than 12 months
Fair Value	1,187,464	725,347
Unrealized Loss	(18,266)	(32,746)
Unrealized loss position for less than 12 months
Unrealized loss position for less than 12 months, fair value		508,182
Unrealized loss position for less than 12 months, unrealized loss		(5,716)
Unrealized loss position for more than 12 months
Unrealized loss position for more than 12 months, fair value		4,043,431
Unrealized loss position for more than 12 months, unrealized loss		(303,695)
AgVantage | Farmer Mac Guaranteed Securities | Operating Segments
Unrealized loss position for less than 12 months
Unrealized loss position for less than 12 months, fair value	1,152,227
Unrealized loss position for less than 12 months, unrealized loss	(12,889)
Unrealized loss position for more than 12 months
Unrealized loss position for more than 12 months, fair value	3,649,845
Unrealized loss position for more than 12 months, unrealized loss	(314,587)
USDA Securities | Farmer Mac Guaranteed Securities
Unrealized loss position for less than 12 months
Fair Value	30,912	0
Unrealized Loss	(529)	0
Unrealized loss position for more than 12 months
Fair Value	8,070	8,393
Unrealized Loss	$ (691)	$ (806)