LOANS - Summary of Changes in Allowance for Losses (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning balance	$ 39,920	$ 25,056	$ 37,785	$ 23,223
Provision for losses	7,043	7,700	11,353	9,450
Charge-offs	(42)	(2,840)	(2,217)	(2,840)
Recovery	246	40	246	123
Ending balance	47,167	29,956	47,167	29,956
Farm & Ranch
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning balance	12,324	5,071	9,400	5,132
Provision for losses	3,190	4,404	6,114	4,343
Charge-offs	(42)	(2,840)	(42)	(2,840)
Recovery	0	0	0	0
Ending balance	15,472	6,635	15,472	6,635
Farm & Ranch | Commercial Real Estate
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Provision for losses			7,600	1,700
Corporate AgFinance
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning balance	6,421	6,298	6,631	5,379
Provision for losses	544	605	2,509	1,441
Charge-offs	0	0	(2,175)	0
Recovery	246	40	246	123
Ending balance	7,211	6,943	7,211	6,943
Corporate AgFinance | Commercial Real Estate
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Provision for losses			0	1,000
Infrastructure Finance loans
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning balance	21,175	13,687	21,754	12,712
Provision for losses	3,309	2,691	2,730	3,666
Charge-offs	0	0	0	0
Recovery	0	0	0	0
Ending balance	$ 24,484	$ 16,378	24,484	16,378
Infrastructure Finance loans | Collateral Pledged
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Provision for losses			$ 5,200	$ 0