FARMER MAC GUARANTEED SECURITIES AND USDA SECURITIES - Schedule of Held-to-Maturity Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
AgVantage
Weighted- Average Yield
Held-to-maturity, accrued interest excluded	$ 47,700	$ 59,800
Farmer Mac Guaranteed Securities and USDA Securities
Amortized Cost
Due within one year	1,106,610
Due after one year through five years	748,491
Due after five years through ten years	311,220
Due after ten years	2,661,938
Total, Amortized Cost	4,828,259
Fair Value
Due within one year	1,096,081
Due after one year through five years	745,365
Due after five years through ten years	283,590
Due after ten years	2,492,591
Total, Fair Value	$ 4,617,627
Weighted- Average Yield
Due within one year	3.62%
Due after one year through five years	4.89%
Due after five years through ten years	3.76%
Due after ten years	4.29%
Total, Weighted- Average Yield	4.24%