CREDIT QUALITY ASSESSMENT - Allowance for Credit Loss Activity (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period			$ 136,242	$ 109,145	$ 109,145
Provision/ (credit) for credit losses - loans			(14,491)	4,681	26,680
Loan charge-offs			(2,265)	(762)	(1,105)
Loan recoveries			801	606	1,522
Net (charge-offs)/ recoveries			(1,464)	(156)	417
Balance at period end	$ 120,287	$ 113,670	120,287	113,670	$ 136,242
Provision/ (credit) for credit losses	$ 5,055	$ 3,046	(16,481)	$ 4,681
Unfunded commitments
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Provision/ (credit) for credit losses			$ (2,000)