CONSOLIDATED BALANCE SHEETS (unaudited) (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Restricted cash	$ 16,579	$ 16,190
Interest receivable	284,786	310,592
Accrued interest payable - consolidated trusts amount	$ 238,582	$ 195,113
Series D
Preferred stock, par value (in dollars per share)	$ 25	$ 25
Preferred stock, shares authorized (in shares)	4,000,000	4,000,000
Preferred stock, shares issued (in shares)	4,000,000	4,000,000
Preferred stock, shares outstanding (in shares)	4,000,000	4,000,000
Series E
Preferred stock, par value (in dollars per share)	$ 25	$ 25
Preferred stock, shares authorized (in shares)	3,180,000	3,180,000
Preferred stock, shares issued (in shares)	3,180,000	3,180,000
Preferred stock, shares outstanding (in shares)	3,180,000	3,180,000
Series F
Preferred stock, par value (in dollars per share)	$ 25	$ 25
Preferred stock, shares authorized (in shares)	4,800,000	4,800,000
Preferred stock, shares issued (in shares)	4,800,000	4,800,000
Preferred stock, shares outstanding (in shares)	4,800,000	4,800,000
Series G
Preferred stock, par value (in dollars per share)	$ 25	$ 25
Preferred stock, shares authorized (in shares)	5,000,000	5,000,000
Preferred stock, shares issued (in shares)	5,000,000	5,000,000
Preferred stock, shares outstanding (in shares)	5,000,000	5,000,000
Series H
Preferred stock, par value (in dollars per share)	$ 25	$ 25
Preferred stock, shares authorized (in shares)	4,000,000	4,000,000
Preferred stock, shares issued (in shares)	4,000,000	4,000,000
Preferred stock, shares outstanding (in shares)	4,000,000	4,000,000
Class A voting common stock
Common stock, par value (in dollars per share)	$ 1	$ 1
Common stock, shares outstanding (in shares)	1,030,780	1,030,780
Class B voting common stock
Common stock, par value (in dollars per share)	$ 1	$ 1
Common stock, shares outstanding (in shares)	500,301	500,301
Class C non-voting common stock
Common stock, par value (in dollars per share)	$ 1	$ 1
Common stock, shares outstanding (in shares)	9,403,453	9,360,083
Consolidated VIE
Interest receivable	$ 22,373	$ 28,563
Accrued interest payable - consolidated trusts amount	11,945	12,387
Available-for-Sale Securities
Amortized cost of available-for-sale investment securities	6,714,777	6,105,116
Farmer Mac Guaranteed Securities
Amortized cost of available-for-sale investment securities	$ 6,042,789	$ 5,835,658