FARMER MAC GUARANTEED SECURITIES AND USDA SECURITIES - Schedule of Held-to-Maturity Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
AgVantage
Weighted- Average Yield
Held-to-maturity, accrued interest excluded	$ 59,800	$ 67,400
Farmer Mac Guaranteed Securities and USDA Securities
Amortized Cost
Due within one year	1,094,388
Due after one year through five years	1,021,370
Due after five years through ten years	296,135
Due after ten years	2,676,507
Total, Amortized Cost	5,088,400
Fair Value
Due within one year	1,089,152
Due after one year through five years	1,006,240
Due after five years through ten years	263,383
Due after ten years	2,454,849
Total, Fair Value	$ 4,813,624
Weighted- Average Yield
Due within one year	4.41%
Due after one year through five years	4.08%
Due after five years through ten years	3.72%
Due after ten years	4.23%
Total, Weighted- Average Yield	4.25%