REVENUE (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Disaggregation of Revenue [Line Items]
Total noninterest income in-scope of Topic 606									$ 93,587	$ 87,666	$ 71,085
Loan servicing income									2,741	3,276	2,977
Securities gains, net									(425)	5,910	7,793
Unrealized (loss) gain on equity securities, net									(622)	58	640
Net gains on sale of loans held for sale									9,032	20,605	28,515
Valuation adjustment on servicing rights									1,658	1,088	(1,778)
Income on bank owned life insurance									2,341	3,762	3,554
Other noninterest income									19,952	6,570	7,505
Total noninterest income out-of-scope of Topic 606									34,677	41,269	49,206
TOTAL NONINTEREST INCOME	$ 29,975	$ 29,181	$ 34,539	$ 34,569	$ 32,730	$ 32,724	$ 33,164	$ 30,317	128,264	128,935	120,291
Service charges and fees on deposit accounts
Disaggregation of Revenue [Line Items]
Total noninterest income in-scope of Topic 606									18,625	16,414	14,441
Overdraft fees
Disaggregation of Revenue [Line Items]
Total noninterest income in-scope of Topic 606									12,136	11,005	9,166
Customer service and other service fees
Disaggregation of Revenue [Line Items]
Total noninterest income in-scope of Topic 606									375	220	177
Credit card fee income
Disaggregation of Revenue [Line Items]
Total noninterest income in-scope of Topic 606									27,560	21,623	16,026
Debit card income
Disaggregation of Revenue [Line Items]
Total noninterest income in-scope of Topic 606									9,335	10,441	7,657
Total service charges and fees
Disaggregation of Revenue [Line Items]
Total noninterest income in-scope of Topic 606									68,031	59,703	47,467
Trust fees
Disaggregation of Revenue [Line Items]
Total noninterest income in-scope of Topic 606									22,570	24,417	20,862
Brokerage and insurance commissions
Disaggregation of Revenue [Line Items]
Total noninterest income in-scope of Topic 606									$ 2,986	$ 3,546	$ 2,756