LOANS - Allowance for Losses (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Losses	$ 37,785	$ 23,223
Real Estate Loan
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Losses	37,785	23,223
Agricultural Finance loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Losses	16,031	10,511	$ 6,884	$ 6,775
Agricultural Finance loans | Real Estate Loan
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Losses	16,031	10,511
Farm & Ranch
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Losses	9,400	5,132	3,936	4,044
Farm & Ranch | Real Estate Loan
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Losses	9,400	5,132
Corporate AgFinance
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Losses	6,631	5,379	2,948	2,731
Corporate AgFinance | Real Estate Loan
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Losses	6,631	5,379
Infrastructure Finance loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Losses	21,754	12,712	$ 9,147	$ 8,314
Infrastructure Finance loans | Real Estate Loan
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Losses	$ 21,754	$ 12,712