FAIR VALUE MEASURES - Schedule of Difference Between Fair Value and Principal Balance for Mortgage Loans Held for Sale Measured at Fair Value (Details) - Mortgage loans held for sale - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Aggregate fair value of mortgage loans held for sale	$ 528,599	$ 281,332
Aggregate unpaid principal balance of mortgage loans held for sale	525,071	273,915
Past due loans of 90 days or more	0	781
Nonaccrual loans	0	781
Unpaid principal balance of nonaccrual loans	$ 0	$ 774