COMMITMENTS AND CONTINGENCIES - Schedule of Guarantor Obligations (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Commitments and Contingencies Disclosure [Abstract]
Commitments to extend credit	$ 3,606,465	$ 3,578,227
Unused home equity lines of credit	436,414	437,304
Financial standby letters of credit	42,306	39,507
Mortgage interest rate lock commitments	$ 347,944	$ 192,528