REVENUE FROM CONTRACTS WITH CUSTOMERS - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disaggregation of Revenue [Line Items]
Total service charges on deposit accounts	$ 46,575	$ 44,499	$ 45,106
Total other service charges, commission and fees	4,401	3,875	4,188
Total other noninterest income	50,714	45,391	23,212
Service charges on deposit accounts
Disaggregation of Revenue [Line Items]
ASC 606 revenue items	46,575	44,499	45,106
Debit card interchange fees
Disaggregation of Revenue [Line Items]
ASC 606 revenue items	16,161	15,884	16,798
Overdraft fees
Disaggregation of Revenue [Line Items]
ASC 606 revenue items	15,793	15,813	16,113
Other service charges on deposit accounts
Disaggregation of Revenue [Line Items]
ASC 606 revenue items	14,621	12,802	12,195
Other service charges, commissions and fees
Disaggregation of Revenue [Line Items]
ASC 606 revenue items	3,856	3,508	3,751
Other	545	367	437
ATM fees
Disaggregation of Revenue [Line Items]
ASC 606 revenue items	3,856	3,508	3,751
Other noninterest income
Disaggregation of Revenue [Line Items]
ASC 606 revenue items	114	4,554	4,985
Other	50,600	40,837	18,227
Trust and wealth management
Disaggregation of Revenue [Line Items]
ASC 606 revenue items	$ 114	$ 4,554	$ 4,985