LOANS - Schedule of Amortized Cost And Weighted Average Financial Effect of Modifications (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2026	Sep. 30, 2026
Farm & Ranch
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount	$ 11,688	$ 40,807
Percentage of Total by Financing Class	0.12%	0.43%
Farm & Ranch | Unfunded Lending Commitment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount		$ 3,700
Corporate AgFinance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount	$ 12,801	$ 12,801
Percentage of Total by Financing Class	0.84%	0.84%
Agricultural Finance loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount	$ 24,488	$ 53,608
Infrastructure Finance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount	$ 0	$ 5,166
Percentage of Total by Financing Class	0.00%	0.06%
Payment Deferrals | Farm & Ranch
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount	$ 11,688	$ 38,107
Financial Effect	8 months	7 months
Payment Deferrals | Corporate AgFinance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount	$ 0	$ 0
Payment Deferrals | Agricultural Finance loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount	11,688	38,107
Payment Deferrals | Infrastructure Finance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount	0	$ 5,166
Financial Effect		4 months
Term Extensions | Farm & Ranch
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount	0	$ 2,700
Financial Effect		60 months
Term Extensions | Corporate AgFinance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount	$ 12,801	$ 12,801
Financial Effect	12 months	12 months
Term Extensions | Agricultural Finance loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount	$ 12,801	$ 15,501
Term Extensions | Infrastructure Finance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount	$ 0	$ 0