LOANS HELD FOR INVESTMENT, NET - Amortized Cost of Loans Modified (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans that have been modified	$ 85,269	$ 109,075
% of Total Class of Financing Receivable	0.80%	1.00%
Term Extension
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans that have been modified		$ 1,889
Significant Payment Delay
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans that have been modified	$ 55,876	94,196
Term Extension and Significant Payment Delay
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans that have been modified		708
Significant Payment Delay and Interest Rate Reduction
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans that have been modified	15,205	29
Term Extension and Interest Rate Reductions
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans that have been modified	14,188	12,253
Business Loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans that have been modified	$ 14,709	$ 3,429
% of Total Class of Financing Receivable	0.50%	0.10%
Business Loans | Term Extension
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans that have been modified		$ 1,889
Business Loans | Significant Payment Delay
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans that have been modified	$ 521	1,207
Business Loans | Term Extension and Significant Payment Delay
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans that have been modified		304
Business Loans | Significant Payment Delay and Interest Rate Reduction
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans that have been modified		29
Business Loans | Term Extension and Interest Rate Reductions
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans that have been modified	14,188
One-to-Four Family Residential and Cooperative/Condominium Apartment
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans that have been modified		$ 404
% of Total Class of Financing Receivable		0.00%
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		$ 404
Multifamily Residential and Residential Mixed-Use
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans that have been modified	$ 27,603	$ 61,832
% of Total Class of Financing Receivable	0.70%	1.50%
Multifamily Residential and Residential Mixed-Use | Significant Payment Delay
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans that have been modified	$ 27,603	$ 61,832
Non-Owner-Occupied Commercial Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans that have been modified	$ 42,957	$ 31,157
% of Total Class of Financing Receivable	1.30%	0.90%
Non-Owner-Occupied Commercial Real Estate | Significant Payment Delay
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans that have been modified	$ 27,752	$ 31,157
Non-Owner-Occupied Commercial Real Estate | Significant Payment Delay and Interest Rate Reduction
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans that have been modified	$ 15,205
Acquisition, development, and construction ("ADC")
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans that have been modified		$ 12,253
% of Total Class of Financing Receivable		7.00%
Acquisition, development, and construction ("ADC") | Term Extension and Interest Rate Reductions
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans that have been modified		$ 12,253