LOANS - Changes in the Allowance for Losses (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning balance			$ 23,223,000
Provision for/(release of) losses	$ 7,713,000	$ 6,179,000	9,397,000	$ 4,378,000
Ending balance	29,956,000		29,956,000
Total Agricultural Finance loans
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning balance	11,369,000	7,104,000	10,511,000	6,884,000
Provision for/(release of) losses	5,009,000	5,629,000	5,784,000	5,849,000
Charge-offs	(2,840,000)	(4,043,000)	(2,840,000)	(4,043,000)
Recovery	40,000	0	123,000	0
Ending balance	13,578,000	8,690,000	13,578,000	8,690,000
Farm & Ranch
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning balance	5,071,000	4,535,000	5,132,000	3,936,000
Provision for/(release of) losses	4,404,000	242,000	4,343,000	841,000
Charge-offs	(2,840,000)	(101,000)	(2,840,000)	(101,000)
Recovery	0	0	0	0
Ending balance	6,635,000	4,676,000	6,635,000	4,676,000
Farm & Ranch | Commercial Real Estate
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Provision for/(release of) losses			1,700,000	1,200,000
Corporate AgFinance
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning balance	6,298,000	2,569,000	5,379,000	2,948,000
Provision for/(release of) losses	605,000	5,387,000	1,441,000	5,008,000
Charge-offs	0	(3,942,000)	0	(3,942,000)
Recovery	40,000	0	123,000	0
Ending balance	6,943,000	4,014,000	6,943,000	4,014,000
Corporate AgFinance | Commercial Real Estate
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Provision for/(release of) losses			1,000,000	0
Infrastructure Finance loans
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning balance	13,687,000	7,184,000	12,712,000	9,147,000
Provision for/(release of) losses	2,691,000	626,000	3,666,000	(1,337,000)
Charge-offs	0	0	0	0
Recovery	0	0	0	0
Ending balance	$ 16,378,000	$ 7,810,000	16,378,000	7,810,000
Infrastructure Finance loans | Collateral Pledged
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Provision for/(release of) losses			$ 0	$ 0