Farmer Mac Guaranteed Securities and USDA Securities - Unrealized Loss Position (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Unrealized loss position for less than 12 months
Unrealized loss position for less than 12 months, Fair Value	$ 3,273,668	$ 1,989,439
Unrealized loss position for less than 12 months, Unrealized Loss	(107,784)	(9,419)
Unrealized loss position for more than 12 months
Unrealized loss position for more than 12 months, Fair Value	337,679	107,592
Unrealized loss position for more than 12 months, Unrealized Loss	(7,845)	(1,055)
Operating Segments
Unrealized loss position for less than 12 months
Unrealized loss position for less than 12 months, Fair Value	4,158,165
Unrealized loss position for less than 12 months, Unrealized Loss	(181,753)
Unrealized loss position for more than 12 months
Unrealized loss position for more than 12 months, Fair Value	911,494
Unrealized loss position for more than 12 months, Unrealized Loss	(50,151)
USDA Securities:
Unrealized loss position for less than 12 months
Fair Value	2,238,039	0
Unrealized Loss	(180,590)	0
Unrealized loss position for more than 12 months
Fair Value	0	0
Unrealized Loss	0	0
Farmer Mac Guaranteed Securities and USDA Securities
Unrealized loss position for less than 12 months
Fair Value	3,564,369	1,387,236
Unrealized Loss	(203,152)	(12,764)
Unrealized loss position for more than 12 months
Fair Value	204,448	0
Unrealized Loss	(20,552)	0
AgVantage | Farmer Mac Guaranteed Securities
Unrealized loss position for less than 12 months
Fair Value	1,306,722	1,387,236
Unrealized Loss	(21,880)	(12,764)
Unrealized loss position for more than 12 months
Fair Value	204,448	0
Unrealized Loss	(20,552)	0
Unrealized loss position for less than 12 months
Unrealized loss position for less than 12 months, Fair Value		1,867,364
Unrealized loss position for less than 12 months, Unrealized Loss		(17,263)
Unrealized loss position for more than 12 months
Unrealized loss position for more than 12 months, Fair Value		90,971
Unrealized loss position for more than 12 months, Unrealized Loss		$ (2,747)
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	4,148,349
Unrealized loss position for less than 12 months, Unrealized Loss	(180,008)
Unrealized loss position for more than 12 months
Unrealized loss position for more than 12 months, Fair Value	911,494
Unrealized loss position for more than 12 months, Unrealized Loss	(50,151)
USDA Securities | Farmer Mac Guaranteed Securities
Unrealized loss position for less than 12 months
Fair Value	19,608
Unrealized Loss	(682)
Unrealized loss position for more than 12 months
Fair Value	0
Unrealized Loss	0
USDA Securities | Farmer Mac Guaranteed Securities | Operating Segments
Unrealized loss position for less than 12 months
Unrealized loss position for less than 12 months, Fair Value	9,816
Unrealized loss position for less than 12 months, Unrealized Loss	(1,745)
Unrealized loss position for more than 12 months
Unrealized loss position for more than 12 months, Fair Value	0
Unrealized loss position for more than 12 months, Unrealized Loss	$ 0