FARMER MAC GUARANTEED SECURITIES AND USDA SECURITIES - Schedule of Held-to-Maturity Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
AgVantage
Weighted- Average Yield
Held-to-maturity, accrued interest excluded	$ 55,000	$ 67,400
Farmer Mac Guaranteed Securities and USDA Securities
Amortized Cost
Due within one year	1,912,322
Due after one year through five years	1,412,798
Due after five years through ten years	288,510
Due after ten years	2,646,106
Total, Amortized Cost	6,259,736
Fair Value
Due within one year	1,910,469
Due after one year through five years	1,377,921
Due after five years through ten years	249,002
Due after ten years	2,363,957
Total, Fair Value	$ 5,901,349
Weighted- Average Yield
Due within one year	5.81%
Due after one year through five years	4.38%
Due after five years through ten years	3.67%
Due after ten years	4.40%
Total, Weighted- Average Yield	4.83%