ALLOWANCE FOR CREDIT LOSSES - Additional Information (Details) - USD ($)	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022	Jan. 01, 2022
Financing Receivable Recorded Investment Past Due [Line Items]
Accrued interest receivable	$ 19,143,000		$ 25,157,000
Individually evaluated loans balance	25,313,000		14,055,000
Individually evaluated include Nonaccrual loans	26,600,000		15,800,000
Individually evaluated non accrual loans performing modified loans	0
Allowance allocated to modified loans	0
Allowance for credit losses	62,250,000	$ 58,386,000	60,829,000
Reduction to allowance for credit losses	(801,000)	(188,000)	(752,000)
Provision for credit losses	1,513,000	$ 2,375,000
Allowance for credit losses, due to specific reserves	1,100,000
Allowance for credit losses, recorded investment nonaccrual status	$ 28,659,000		$ 18,974,000
Allowance for credit losses, percentage of loans	1.16%		1.15%
Multifamily Property [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Allowance for credit losses, recorded investment nonaccrual status	$ 9,700,000
ASU 2016-13 [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Reduction to allowance for credit losses				$ 5,500,000
Loans [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Accrued interest receivable	$ 16,900,000		$ 22,800,000