FARMER MAC GUARANTEED SECURITIES AND USDA SECURITIES - Narrative (Details) - Farmer Mac Guaranteed Securities - AgVantage - security	Mar. 31, 2025	Dec. 31, 2024
Debt Securities, Available-for-sale [Line Items]
Available-for-sale, securities in unrealized loss positions	56	66
Held-to-maturity, securities in unrealized loss positions	37	45
Unrealized loss position for more than 12 months, number of securities in loss position	51	54
Debt securities, held-to-maturity, unrealized loss position for more than 12 months, number of securities in loss position	28	26