Number of financing receivables that have been modified by troubled debt restructurings.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953676-111524

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Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI https://asc.fasb.org/extlink&oid=124259787&loc=d3e4428-111522

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LOANS AND ALLOWANCE FOR CREDIT LOSSES (Schedule of Loans by Risk Category) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2023 USD ($) loan	Dec. 31, 2022 USD ($)
Loans and Leases Receivable Disclosure [Line Items]
Total loans	$ 4,865,028	$ 4,853,495
Number of TDR loans during the period \| loan	0
Construction
Loans and Leases Receivable Disclosure [Line Items]
Total loans		143,693
Construction \| Pass
Loans and Leases Receivable Disclosure [Line Items]
Total loans		143,693
Multifamily
Loans and Leases Receivable Disclosure [Line Items]
Total loans		468,540
Multifamily \| Pass
Loans and Leases Receivable Disclosure [Line Items]
Total loans		468,540
Receivables other than one to four family and consumer loans
Loans and Leases Receivable Disclosure [Line Items]
Total loans		4,775,357
Receivables other than one to four family and consumer loans \| Pass
Loans and Leases Receivable Disclosure [Line Items]
Total loans		4,681,312
Receivables other than one to four family and consumer loans \| Special Mention
Loans and Leases Receivable Disclosure [Line Items]
Total loans		67,630
Receivables other than one to four family and consumer loans \| Substandard
Loans and Leases Receivable Disclosure [Line Items]
Total loans		26,415
Real estate
Loans and Leases Receivable Disclosure [Line Items]
Total loans	$ 3,899,093	3,919,948
Real estate \| Commercial
Loans and Leases Receivable Disclosure [Line Items]
Total loans	3,279,321	3,254,508
Real estate \| Commercial \| Pass
Loans and Leases Receivable Disclosure [Line Items]
Total loans		3,192,212
Real estate \| Commercial \| Special Mention
Loans and Leases Receivable Disclosure [Line Items]
Total loans		35,881
Real estate \| Commercial \| Substandard
Loans and Leases Receivable Disclosure [Line Items]
Total loans		26,415
Real estate \| Construction
Loans and Leases Receivable Disclosure [Line Items]
Total loans	123,292	143,693
Real estate \| Multifamily
Loans and Leases Receivable Disclosure [Line Items]
Total loans	444,052	468,540
Commercial and industrial
Loans and Leases Receivable Disclosure [Line Items]
Total loans	$ 935,541	908,616
Commercial and industrial \| Commercial
Loans and Leases Receivable Disclosure [Line Items]
Total loans		908,616
Commercial and industrial \| Commercial \| Pass
Loans and Leases Receivable Disclosure [Line Items]
Total loans		876,867
Commercial and industrial \| Commercial \| Special Mention
Loans and Leases Receivable Disclosure [Line Items]
Total loans		$ 31,749