SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Definite-Lived Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Finite-Lived Intangible Assets [Line Items]
Net Carrying Amount	$ 59,278
Core deposit intangibles
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	99,071	$ 99,071
Accumulated Amortization	(39,793)	(30,259)
Net Carrying Amount	$ 59,278	$ 68,812