LOANS - Narrative (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2025 USD ($) segment	Dec. 31, 2024 USD ($) loan	Dec. 31, 2023 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of operating segments | segment	7
Provision for losses	$ 32,860	$ 11,579	$ 858
Agricultural Finance loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of operating segments | segment	2
Provision for losses	$ 24,051	8,125	109
Charge-offs	20,883	$ 4,498	0
Number of borrowers | loan		2
Charge-offs, uncollectible amount		$ 3,900
Corporate AgFinance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Provision for losses	15,394	6,828	217
Charge-offs	14,819	4,397	0
Loans modified	0	0	0
Corporate AgFinance | Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Provision for losses	14,600
Farm & Ranch
Accounts, Notes, Loans and Financing Receivable [Line Items]
Provision for losses	8,657	1,297	(108)
Charge-offs	6,064	101	0
Loans modified	$ 33,800	$ 47,700	$ 18,400
Loans modified, percent of loan portfolio	0.40%	0.64%	0.28%
Farm & Ranch | Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Provision for losses	$ 5,000
Charge-offs	4,400
Infrastructure Finance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Provision for losses	9,042	$ 3,565	$ 833
Charge-offs	0	0	0
Loans modified	$ 13,200	$ 0	$ 0
Loans modified, percent of loan portfolio	0.19%
Infrastructure Finance | Credit Deterioration
Accounts, Notes, Loans and Financing Receivable [Line Items]
Provision for losses	$ 5,100
Infrastructure Finance | Net Volume Growth
Accounts, Notes, Loans and Financing Receivable [Line Items]
Provision for losses	$ 3,900