LOANS - Summary of Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Accounts Notes And Loans Receivable [Line Items]
Total loans	$ 10,709,180	$ 6,893,984
Premiums, discounts and deferred fees and expenses	17,013	12,744
Total	10,726,193	6,906,728
Residential Properties
Accounts Notes And Loans Receivable [Line Items]
Total	6,377,224	3,832,495
Commercial real estate
Accounts Notes And Loans Receivable [Line Items]
Total	1,202,063	1,309,575
Land and Construction
Accounts Notes And Loans Receivable [Line Items]
Total	157,630	155,926
Commercial and Industrial Loans
Accounts Notes And Loans Receivable [Line Items]
Total loans	2,984,748	1,598,422
Total	2,984,758	1,597,865
Consumer Loans
Accounts Notes And Loans Receivable [Line Items]
Total loans	4,481	10,834
Total	4,518	10,867
Real Estate Loans
Accounts Notes And Loans Receivable [Line Items]
Total loans	7,719,951	5,284,728
Real Estate Loans | Residential Properties
Accounts Notes And Loans Receivable [Line Items]
Total loans	6,358,094	3,819,500
Total	6,377,224	3,832,495
Real Estate Loans | Multifamily
Accounts Notes And Loans Receivable [Line Items]
Total loans	5,341,596	2,886,055
Real Estate Loans | Single family
Accounts Notes And Loans Receivable [Line Items]
Total loans	1,016,498	933,445
Real Estate Loans | Commercial real estate
Accounts Notes And Loans Receivable [Line Items]
Total loans	1,203,292	1,309,200
Total	1,202,063	1,309,575
Real Estate Loans | Land and Construction
Accounts Notes And Loans Receivable [Line Items]
Total loans	158,565	156,028
Total	$ 157,630	$ 155,926