GOODWILL AND IDENTIFIABLE INTANGIBLE ASSETS (Details 2) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 48,583	$ 37,240
Accumulated Amortization	(19,297)	(21,990)
Net Carrying Amount	29,286	15,250
Core Deposits [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	45,245	34,137
Accumulated Amortization	(17,229)	(20,445)
Net Carrying Amount	28,016	13,692
Other intangible assets [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	3,338	3,103
Accumulated Amortization	(2,068)	(1,545)
Net Carrying Amount	$ 1,270	$ 1,558