LOANS RECEIVABLE AND ALLOWANCE FOR CREDIT LOSSES - Additional Information (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	$ 4,591,908,000		$ 4,591,908,000		$ 4,468,476,000
Increase in allowance for credit losses	1,100,000		812,000
Provision for credit loss expense	2,381,000	$ 1,056,000	6,292,000	$ 4,751,000
Provision for credit losses on unfunded loan commitments	49,000	33,000	112,000	$ 148,000
Financing receivable, excluding accrued interest, modified, subsequent default	0
Syndicated Loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	69,470,000		69,470,000		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	719,441,000		719,441,000		726,442,000
Commercial and Industrial | Syndicated Loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	$ 69,500,000		$ 69,500,000		$ 108,700,000