SEGMENT INFORMATION (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Financial results by reportable segments [Abstract]
Net interest income	$ 29,593	$ 30,448	$ 59,137	$ 60,647
Provision for loan loss	2,007	(13,133)	1,918	(19,367)
Noninterest income	22,250	24,896	48,750	43,771
Noninterest expense	(36,778)	(35,207)	(73,835)	(69,218)
Income before income taxes	17,072	7,004	35,970	15,833
Income tax (expense) benefit	(3,422)	(1,389)	(7,160)	(3,135)
Net income	13,650	5,615	28,810	12,698
Banking [Member] | Operating Segments [Member]
Financial results by reportable segments [Abstract]
Net interest income	29,593	30,448	59,137	60,647
Provision for loan loss	2,007	(13,133)	1,918	(19,367)
Noninterest income	21,076	23,896	46,493	41,657
Noninterest expense	(35,665)	(34,061)	(71,620)	(66,892)
Income before income taxes	17,011	7,150	35,928	16,045
Income tax (expense) benefit	(3,409)	(1,358)	(7,150)	(3,117)
Net income	13,602	5,792	28,778	12,928
Insurance [Member] | Operating Segments [Member]
Financial results by reportable segments [Abstract]
Net interest income	0	0	0	0
Provision for loan loss	0	0	0	0
Noninterest income	1,174	1,000	2,257	2,114
Noninterest expense	(1,113)	(1,146)	(2,215)	(2,326)
Income before income taxes	61	(146)	42	(212)
Income tax (expense) benefit	(13)	(31)	(10)	(18)
Net income	$ 48	$ (177)	$ 32	$ (230)