GOODWILL AND OTHER INTANGIBLES - Gross Amount and Accumulated Amortization of Other Intangible Assets (Detail) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Finite Lived Intangible Assets [Line Items]
Net carrying amount	$ 11,542	$ 13,383
Core Deposits [Member]
Finite Lived Intangible Assets [Line Items]
Gross amount	87,544	87,544
Accumulated amortization	(76,002)	(74,161)
Net carrying amount	$ 11,542	$ 13,383
Remaining amortization period (in years)	5 years 9 months 18 days	6 years