LOANS HELD FOR INVESTMENT, NET - Amortized Cost of Loans Modified (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans that have been modified	$ 86,149	$ 42,281
% of Total Class of Financing Receivable	0.80%	0.40%
Term Extension
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans that have been modified	$ 19,668	$ 1,789
Significant Payment Delay
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans that have been modified	65,371	39,582
Term Extension and Significant Payment Delay
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans that have been modified	187	612
Significant Payment Delay and Interest Rate Reduction
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans that have been modified	27	298
Term Extension and Interest Rate Reductions
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans that have been modified	896
Business Loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans that have been modified	$ 20,064	$ 14,627
% of Total Class of Financing Receivable	0.70%	0.60%
Business Loans | Term Extension
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans that have been modified	$ 19,668	$ 1,789
Business Loans | Significant Payment Delay
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans that have been modified	182	12,020
Business Loans | Term Extension and Significant Payment Delay
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans that have been modified	187	520
Business Loans | Significant Payment Delay and Interest Rate Reduction
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans that have been modified	27	298
One-to-Four Family Residential and Cooperative/Condominium Apartment
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans that have been modified	$ 896	$ 2,948
% of Total Class of Financing Receivable	0.10%	0.30%
One-to-Four Family Residential and Cooperative/Condominium Apartment | Significant Payment Delay
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans that have been modified		$ 2,856
One-to-Four Family Residential and Cooperative/Condominium Apartment | Term Extension and Significant Payment Delay
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans that have been modified		92
One-to-Four Family Residential and Cooperative/Condominium Apartment | Term Extension and Interest Rate Reductions
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans that have been modified	$ 896
Multifamily Residential and Residential Mixed-Use
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans that have been modified	$ 34,087
% of Total Class of Financing Receivable	0.90%
Multifamily Residential and Residential Mixed-Use | Significant Payment Delay
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans that have been modified	$ 34,087
Non-Owner-Occupied Commercial Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans that have been modified	$ 31,102	$ 24,706
% of Total Class of Financing Receivable	1.00%	0.70%
Non-Owner-Occupied Commercial Real Estate | Significant Payment Delay
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans that have been modified	$ 31,102	$ 24,706