FARMER MAC GUARANTEED SECURITIES AND USDA SECURITIES - Schedule of Held-to-Maturity Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
AgVantage
Weighted- Average Yield
Held-to-maturity, accrued interest excluded	$ 46,600	$ 59,800
Farmer Mac Guaranteed Securities and USDA Securities
Amortized Cost
Due within one year	913,578
Due after one year through five years	608,130
Due after five years through ten years	329,460
Due after ten years	2,686,634
Total, Amortized Cost	4,537,802
Fair Value
Due within one year	906,222
Due after one year through five years	607,028
Due after five years through ten years	299,526
Due after ten years	2,515,576
Total, Fair Value	$ 4,328,352
Weighted- Average Yield
Due within one year	3.41%
Due after one year through five years	4.87%
Due after five years through ten years	3.80%
Due after ten years	4.34%
Total, Weighted- Average Yield	4.23%