FINANCIAL DERIVATIVES - Narrative (Details) - USD ($)	Sep. 30, 2025	Dec. 31, 2024
Derivative [Line Items]
Gain expected to be reclassified from AOCI to earnings over next 12 months	$ 7,200,000
Financial derivatives, net payable position	0	$ 0
Notional amount	24,605,848,000	24,896,331,000
Exchange Cleared
Derivative [Line Items]
Notional amount	19,000,000,000.0	19,100,000,000
Interest Rate Swap
Derivative [Line Items]
Notional amount	24,600,000,000	24,900,000,000
Cleared Swaps
Derivative [Line Items]
Accrued interest on cleared swaps	23,100,000	15,800,000
Uncleared Swaps
Derivative [Line Items]
Accrued interest payable	$ 3,700,000	$ 4,900,000