GOODWILL AND CORE DEPOSIT INTANGIBLE ASSETS (Carrying amount of intangible assets (including accumulated amortization) (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 101,185	$ 101,185
Accumulated Amortization	85,684	82,770
Net Carrying Amount	15,501	18,415
Core deposit intangibles
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	101,185	101,185
Accumulated Amortization	85,684	82,770
Net Carrying Amount	$ 15,501	$ 18,415