SEGMENT INFORMATION (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Financial results by reportable segments [Abstract]
Net interest income	$ 29,544	$ 30,199
Provision for loan loss	(89)	(6,234)
Noninterest income	26,500	18,875
Noninterest expense	(37,057)	(34,011)
Income before income taxes	18,898	8,829
Income tax (expense) benefit	(3,738)	(1,746)
Net income (loss)	15,160	7,083
Banking [Member] | Operating Segments [Member]
Financial results by reportable segments [Abstract]
Net interest income	29,544	30,199
Provision for loan loss	(89)	(6,234)
Noninterest income	25,417	17,761
Noninterest expense	(35,955)	(32,831)
Income before income taxes	18,917	8,895
Income tax (expense) benefit	(3,741)	(1,758)
Net income (loss)	15,176	7,137
Insurance [Member] | Operating Segments [Member]
Financial results by reportable segments [Abstract]
Net interest income	0	0
Provision for loan loss	0	0
Noninterest income	1,083	1,114
Noninterest expense	(1,102)	(1,180)
Income before income taxes	(19)	(66)
Income tax (expense) benefit	3	12
Net income (loss)	$ (16)	$ (54)