LOANS HELD FOR INVESTMENT, NET - Financial effect of the modifications to borrowers experiencing financial difficulty (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Interest Rate Reductions	4.27%
Weighted Average months of Term Extensions	202 months
Weighted Average Payment Delay or Principal Forgiveness	$ 3,470
One-to-four family residential and cooperative/condominium apartment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average months of Term Extensions	189 months
Weighted Average Payment Delay or Principal Forgiveness	$ 76
Commercial real estate ("CRE")
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Payment Delay or Principal Forgiveness	$ 988
Commercial and Industrial ("C&I") Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Interest Rate Reductions	4.27%
Weighted Average months of Term Extensions	13 months
Weighted Average Payment Delay or Principal Forgiveness	$ 2,406