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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]
Non-interest income (in-scope of Topic 606)									$ 40,874	$ 46,103	$ 46,853
Non-interest income (out-of-scope of Topic 606)									28,063	97,145	19,454
Total non-interest income	$ 15,654	$ 16,251	$ 16,351	$ 20,681	$ 21,409	$ 73,635	$ 22,011	$ 26,193	68,937	143,248	66,307
Service charges on deposit accounts
Disaggregation of Revenue [Line Items]
Non-interest income (in-scope of Topic 606)									22,396	20,249	19,239
Wealth management fees
Disaggregation of Revenue [Line Items]
Non-interest income (in-scope of Topic 606)									10,008	10,530	9,285
Interchange income
Disaggregation of Revenue [Line Items]
Non-interest income (in-scope of Topic 606)									8,470	8,321	7,559
Insurance commissions and fees
Disaggregation of Revenue [Line Items]
Non-interest income (in-scope of Topic 606)									$ 0	$ 7,003	$ 10,770

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