LOANS RECEIVABLE AND ALLOWANCE FOR CREDIT LOSSES - Additional Information (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	$ 4,479,692,000		$ 4,479,692,000		$ 4,468,476,000
Decrease in allowance for credit losses	300,000		300,000
Provision for credit loss expense	2,591,000	$ 2,405,000	3,911,000	$ 3,695,000
Provision for credit losses on unfunded loan commitments	87,000	56,000	63,000	$ 115,000
Financing receivable, excluding accrued interest, modified, subsequent default		0
Syndicated loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	53,938,000		53,938,000		108,710,000
Unfunded Loan Commitment
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing receivable excluding accrued interest modified accumulated	0	$ 0	0
Commercial and Industrial
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	659,407,000		659,407,000		726,442,000
Commercial and Industrial | Syndicated loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	$ 53,900,000		$ 53,900,000		$ 108,700,000