DERIVATIVES AND HEDGING - Derivatives and Hedges Recorded at Fair Value (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Mar. 31, 2024	Sep. 30, 2025	Dec. 31, 2024
Derivative [Line Items]
Derivative and hedging assets		$ 53,684	$ 75,147
Derivative and Hedging Liabilities:		101,789	52,610
Derivative liabilities, other commitments	$ 25,500
Derivative liabilities, redemption right as derivative fair value		6,000
Interest rate swaps and futures
Derivative [Line Items]
Derivative and hedging assets		0	6
Derivative asset, variation margin accounts		49,100	42,000
IRLCs
Derivative [Line Items]
Derivative and hedging assets		36,573	21,496
Derivative and Hedging Liabilities:		16,009	10,202
TBAs
Derivative [Line Items]
Derivative and hedging assets		16,422	50,809
Derivative and Hedging Liabilities:		43,706	15,628
Foreign exchange forwards
Derivative [Line Items]
Derivative and hedging assets		689	2,836
Derivative and Hedging Liabilities:		897	0
Treasury short sales
Derivative [Line Items]
Derivative and Hedging Liabilities:		0	1,245
Derivative liabilities, reverse repurchase agreements			503,900
Other commitments
Derivative [Line Items]
Derivative and Hedging Liabilities:		31,512	25,521
Stock options
Derivative [Line Items]
Derivative and Hedging Liabilities:		14	14
Interest rate swaps and futures
Derivative [Line Items]
Derivative and Hedging Liabilities:		$ 9,651	$ 0