SEGMENT INFORMATION (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Segment Reporting Information [Line Items]
Net interest income (expense)	$ 46,651	$ 45,601
Provision for credit losses on loans	10,569	3,243
Noninterest income	8,598	17,075
Noninterest expense	42,675	41,097
Income (loss) before income taxes (benefit)	2,005	18,336
Income taxes (benefit)	456	4,354
Net income (loss)	1,549	13,982
Total assets	6,208,230	5,641,780	$ 6,087,017
Banking
Segment Reporting Information [Line Items]
Net interest income (expense)	49,927	48,518
Provision for credit losses on loans	10,569	3,243
Noninterest income	10,213	8,940
Noninterest expense	37,074	35,371
Income (loss) before income taxes (benefit)	12,497	18,844
Income taxes (benefit)	3,909	4,975
Net income (loss)	8,588	13,869
Total assets	6,132,963	5,582,494
Wealth management
Segment Reporting Information [Line Items]
Noninterest income	5,677	4,953
Noninterest expense	3,613	3,247
Income (loss) before income taxes (benefit)	2,064	1,706
Income taxes (benefit)	205	140
Net income (loss)	1,859	1,566
Total assets	21,875	19,039
Commercial FHA origination and servicing
Segment Reporting Information [Line Items]
Net interest income (expense)	(64)	(176)
Noninterest income	(7,232)	3,238
Noninterest expense	2,094	2,811
Income (loss) before income taxes (benefit)	(9,390)	251
Income taxes (benefit)	(2,629)	71
Net income (loss)	(6,761)	180
Total assets	81,394	94,797
Other
Segment Reporting Information [Line Items]
Net interest income (expense)	(3,212)	(2,741)
Noninterest income	(60)	(56)
Noninterest expense	(106)	(332)
Income (loss) before income taxes (benefit)	(3,166)	(2,465)
Income taxes (benefit)	(1,029)	(832)
Net income (loss)	(2,137)	(1,633)
Total assets	$ (28,002)	$ (54,550)