LOANS - Schedule of Financing Receivables Credit Quality Indicators (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Total
Total	$ 10,668,844		$ 10,668,844		$ 9,623,119
Agricultural Finance
Total
Current period charge-offs	0	$ 0	4,043	$ 0
Farm & Ranch
Year One
Total	741,236		741,236		604,837
Current period charge-offs	0	0	0	0
Year Two
Total	594,161		594,161		1,207,742
Current period charge-offs	0	0	0	0
Year Three
Total	1,161,285		1,161,285		1,691,901
Current period charge-offs	0	0	0	0
Year Four
Total	1,619,496		1,619,496		1,149,903
Current period charge-offs	0	0	101	0
Year Five
Total	1,084,034		1,084,034		357,646
Current period charge-offs	0	0	0	0
Prior
Total	1,375,139		1,375,139		1,148,725
Current period charge-offs	0	0	0	0
Revolving Loans - Amortized Cost Basis
Total	396,349		396,349		404,957
Current period charge-offs	0	0	0	0
Total
Total	6,971,700		6,971,700		6,565,711
Current period charge-offs	0	0	101	0
Corporate AgFinance
Year One
Total	106,145		106,145		207,279
Current period charge-offs	0	0	0	0
Year Two
Total	200,261		200,261		112,444
Current period charge-offs	0	0	0	0
Year Three
Total	83,495		83,495		277,400
Current period charge-offs	0	0	0	0
Year Four
Total	250,727		250,727		173,980
Current period charge-offs	0	0	0	0
Year Five
Total	170,396		170,396		119,685
Current period charge-offs	0	0	0	0
Prior
Total	195,670		195,670		112,947
Current period charge-offs	0	0	0	0
Revolving Loans - Amortized Cost Basis
Total	290,869		290,869		255,988
Current period charge-offs	0	0	3,942	0
Total
Total	1,297,563		1,297,563		1,259,723
Current period charge-offs	0	0	3,942	0
Rural Infrastructure Finance
Year One
Total	935,251		935,251		618,946
Current period charge-offs	0	0	0	0
Year Two
Total	547,129		547,129		720,522
Current period charge-offs	0	0	0	0
Year Three
Total	641,415		641,415		187,746
Current period charge-offs	0	0	0	0
Year Four
Total	176,273		176,273		593,841
Current period charge-offs	0	0	0	0
Year Five
Total	565,944		565,944		701,937
Current period charge-offs	0	0	0	0
Prior
Total	1,242,792		1,242,792		611,548
Current period charge-offs	0	0	0	0
Revolving Loans - Amortized Cost Basis
Total	274,551		274,551		100,223
Current period charge-offs	0	0	0	0
Total
Total	4,383,355		4,383,355		3,534,763
Current period charge-offs	0	$ 0	0	$ 0
Acceptable | Farm & Ranch
Year One
Total	660,038		660,038		530,956
Year Two
Total	490,681		490,681		1,137,226
Year Three
Total	1,094,748		1,094,748		1,653,780
Year Four
Total	1,563,276		1,563,276		1,120,917
Year Five
Total	1,023,692		1,023,692		323,922
Prior
Total	1,260,030		1,260,030		1,068,862
Revolving Loans - Amortized Cost Basis
Total	362,119		362,119		385,766
Total
Total	6,454,584		6,454,584		6,221,429
Acceptable | Corporate AgFinance
Year One
Total	106,145		106,145		207,279
Year Two
Total	155,782		155,782		97,922
Year Three
Total	75,840		75,840		261,992
Year Four
Total	235,951		235,951		123,158
Year Five
Total	80,593		80,593		99,352
Prior
Total	162,180		162,180		112,947
Revolving Loans - Amortized Cost Basis
Total	264,366		264,366		254,325
Total
Total	1,080,857		1,080,857		1,156,975
Acceptable | Rural Infrastructure Finance
Year One
Total	932,310		932,310		618,946
Year Two
Total	536,679		536,679		681,272
Year Three
Total	582,812		582,812		187,746
Year Four
Total	176,273		176,273		593,841
Year Five
Total	565,944		565,944		701,937
Prior
Total	1,242,792		1,242,792		611,548
Revolving Loans - Amortized Cost Basis
Total	274,551		274,551		100,223
Total
Total	4,311,361		4,311,361		3,495,513
Special mention | Farm & Ranch
Year One
Total	78,097		78,097		70,524
Year Two
Total	77,428		77,428		46,529
Year Three
Total	25,222		25,222		27,957
Year Four
Total	31,257		31,257		11,591
Year Five
Total	6,897		6,897		4,782
Prior
Total	28,306		28,306		21,257
Revolving Loans - Amortized Cost Basis
Total	9,874		9,874		8,777
Total
Total	257,081		257,081		191,417
Special mention | Corporate AgFinance
Year One
Total	0		0		0
Year Two
Total	37,168		37,168		14,522
Year Three
Total	0		0		15,408
Year Four
Total	14,776		14,776		50,822
Year Five
Total	75,464		75,464		20,333
Prior
Total	0		0		0
Revolving Loans - Amortized Cost Basis
Total	7,275		7,275		1,663
Total
Total	134,683		134,683		102,748
Special mention | Rural Infrastructure Finance
Year One
Total	2,941		2,941		0
Year Two
Total	10,450		10,450		9,850
Year Three
Total	34,475		34,475		0
Year Four
Total	0		0		0
Year Five
Total	0		0		0
Prior
Total	0		0		0
Revolving Loans - Amortized Cost Basis
Total	0		0		0
Total
Total	47,866		47,866		9,850
Substandard | Farm & Ranch
Year One
Total	3,101		3,101		3,357
Year Two
Total	26,052		26,052		23,987
Year Three
Total	41,315		41,315		10,164
Year Four
Total	24,963		24,963		17,395
Year Five
Total	53,445		53,445		28,942
Prior
Total	86,803		86,803		58,606
Revolving Loans - Amortized Cost Basis
Total	24,356		24,356		10,414
Total
Total	260,035		260,035		152,865
Substandard | Corporate AgFinance
Year One
Total	0		0		0
Year Two
Total	7,311		7,311		0
Year Three
Total	7,655		7,655		0
Year Four
Total	0		0		0
Year Five
Total	14,339		14,339		0
Prior
Total	33,490		33,490		0
Revolving Loans - Amortized Cost Basis
Total	19,228		19,228		0
Total
Total	82,023		82,023		0
Substandard | Rural Infrastructure Finance
Year One
Total	0		0		0
Year Two
Total	0		0		29,400
Year Three
Total	24,128		24,128		0
Year Four
Total	0		0		0
Year Five
Total	0		0		0
Prior
Total	0		0		0
Revolving Loans - Amortized Cost Basis
Total	0		0		0
Total
Total	$ 24,128		$ 24,128		$ 29,400