LOANS - Schedule of Financing Receivables Credit Quality Indicators (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Total
Total	$ 9,623,119	$ 9,008,979
Farm & Ranch
Year One
Total	604,837	1,252,022
Current period charge-offs	0	0
Year Two
Total	1,207,742	1,781,621
Current period charge-offs	0	0
Year Three
Total	1,691,901	1,236,079
Current period charge-offs	0	0
Year Four
Total	1,149,903	395,895
Current period charge-offs	0	0
Year Five
Total	357,646	265,661
Current period charge-offs	0	0
Prior
Total	1,148,725	1,032,986
Current period charge-offs	0	(84)
Revolving Loans - Amortized Cost Basis
Total	404,957	398,062
Current period charge-offs	0	0
Total
Total	6,565,711	6,362,326
Current period charge-offs	0	(84)
Corporate AgFinance
Year One
Total	207,279	145,263
Current period charge-offs	0	0
Year Two
Total	112,444	299,729
Current period charge-offs	0	0
Year Three
Total	277,400	226,158
Current period charge-offs	0	0
Year Four
Total	173,980	128,928
Current period charge-offs	0	0
Year Five
Total	119,685	76,454
Current period charge-offs	0	0
Prior
Total	112,947	44,827
Current period charge-offs	0	0
Revolving Loans - Amortized Cost Basis
Total	255,988	244,894
Current period charge-offs	0	0
Total
Total	1,259,723	1,166,253
Current period charge-offs	0	0
Rural Infrastructure Finance
Year One
Total	618,946	741,021
Current period charge-offs	0	0
Year Two
Total	720,522	220,420
Current period charge-offs	0	0
Year Three
Total	187,746	629,223
Current period charge-offs	0	0
Year Four
Total	593,841	739,270
Current period charge-offs	0	0
Year Five
Total	701,937	7,932
Current period charge-offs	0	0
Prior
Total	611,548	649,830
Current period charge-offs	0	0
Revolving Loans - Amortized Cost Basis
Total	100,223	33,570
Current period charge-offs	0	0
Total
Total	3,534,763	3,021,266
Current period charge-offs	0	0
Acceptable | Farm & Ranch
Year One
Total	530,956	1,157,829
Year Two
Total	1,137,226	1,704,547
Year Three
Total	1,653,780	1,187,474
Year Four
Total	1,120,917	360,704
Year Five
Total	323,922	242,491
Prior
Total	1,068,862	947,535
Revolving Loans - Amortized Cost Basis
Total	385,766	385,503
Total
Total	6,221,429	5,986,083
Acceptable | Corporate AgFinance
Year One
Total	207,279	145,263
Year Two
Total	97,922	299,729
Year Three
Total	261,992	221,560
Year Four
Total	123,158	108,230
Year Five
Total	99,352	76,454
Prior
Total	112,947	44,827
Revolving Loans - Amortized Cost Basis
Total	254,325	232,107
Total
Total	1,156,975	1,128,170
Acceptable | Rural Infrastructure Finance
Year One
Total	618,946	741,021
Year Two
Total	681,272	220,420
Year Three
Total	187,746	629,223
Year Four
Total	593,841	739,270
Year Five
Total	701,937	7,932
Prior
Total	611,548	649,830
Revolving Loans - Amortized Cost Basis
Total	100,223	33,570
Total
Total	3,495,513	3,021,266
Special mention | Farm & Ranch
Year One
Total	70,524	91,099
Year Two
Total	46,529	68,260
Year Three
Total	27,957	25,629
Year Four
Total	11,591	11,254
Year Five
Total	4,782	5,325
Prior
Total	21,257	17,797
Revolving Loans - Amortized Cost Basis
Total	8,777	2,452
Total
Total	191,417	221,816
Special mention | Corporate AgFinance
Year One
Total	0	0
Year Two
Total	14,522	0
Year Three
Total	15,408	0
Year Four
Total	50,822	20,698
Year Five
Total	20,333	0
Prior
Total	0	0
Revolving Loans - Amortized Cost Basis
Total	1,663	2,145
Total
Total	102,748	22,843
Special mention | Rural Infrastructure Finance
Year One
Total	0	0
Year Two
Total	9,850	0
Year Three
Total	0	0
Year Four
Total	0	0
Year Five
Total	0	0
Prior
Total	0	0
Revolving Loans - Amortized Cost Basis
Total	0	0
Total
Total	9,850	0
Substandard | Farm & Ranch
Year One
Total	3,357	3,094
Year Two
Total	23,987	8,814
Year Three
Total	10,164	22,976
Year Four
Total	17,395	23,937
Year Five
Total	28,942	17,845
Prior
Total	58,606	67,654
Revolving Loans - Amortized Cost Basis
Total	10,414	10,107
Total
Total	152,865	154,427
Substandard | Corporate AgFinance
Year One
Total	0	0
Year Two
Total	0	0
Year Three
Total	0	4,598
Year Four
Total	0	0
Year Five
Total	0	0
Prior
Total	0	0
Revolving Loans - Amortized Cost Basis
Total	0	10,642
Total
Total	0	15,240
Substandard | Rural Infrastructure Finance
Year One
Total	0	0
Year Two
Total	29,400	0
Year Three
Total	0	0
Year Four
Total	0	0
Year Five
Total	0	0
Prior
Total	0	0
Revolving Loans - Amortized Cost Basis
Total	0	0
Total
Total	$ 29,400	$ 0