RELATED PARTY TRANSACTIONS - Schedule of Related Party Transactions (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Zions
Related Party Transaction [Line Items]
Related party, transaction amount	$ 11,200	$ 11,200	$ 10,400
CFC
Related Party Transaction [Line Items]
Related party, transaction amount	653,972	1,748,254	1,087,419
Loans | Zions
Related Party Transaction [Line Items]
Related party, transaction amount	173,928	160,079	274,517
Loans | CFC
Related Party Transaction [Line Items]
Related party, transaction amount	453,972	298,254	386,998
USDA Securities | Zions
Related Party Transaction [Line Items]
Related party, transaction amount	363	231	4,171
Sales of Farmer Mac Guaranteed Securities | Zions
Related Party Transaction [Line Items]
Related party, transaction amount	60,192	0	99,643
LTSPCs | CFC
Related Party Transaction [Line Items]
Related party, transaction amount	0	0	30,421
AgVantage Securities | CFC
Related Party Transaction [Line Items]
Related party, transaction amount	$ 200,000	$ 1,450,000	$ 670,000