OTHER INTANGIBLES - Schedule of Components of Other Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Finite-Lived Intangible Assets [Line Items]
Gross Intangible Assets	$ 85,079	$ 85,079
Accumulated Amortization	(65,415)	(60,596)
Net Intangible Assets	19,664	24,483
Non-maturity deposits (core deposit intangible)
Finite-Lived Intangible Assets [Line Items]
Gross Intangible Assets	77,213	77,213
Accumulated Amortization	(58,965)	(54,618)
Net Intangible Assets	18,248	22,595
All other intangible assets
Finite-Lived Intangible Assets [Line Items]
Gross Intangible Assets	7,866	7,866
Accumulated Amortization	(6,450)	(5,978)
Net Intangible Assets	$ 1,416	$ 1,888