LOANS HELD FOR INVESTMENT, NET - Allowance for Credit Losses Activity (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Allowance for credit losses:
Allowance for credit losses, Beginning balance	$ 71,743
Provision (recovery) for credit losses	36,113	$ 2,770	$ 5,374
Allowance for credit losses, Ending balance	88,751	71,743
Non-accrual with No Allowance	21,652	3,780
Non-accrual with Allowance	27,827	25,319
Reserve	16,585	14,202
Business Loans
Allowance for credit losses:
Allowance for credit losses, Beginning balance	35,962	47,029	62,366
Provision (recovery) for credit losses	14,435	3,273	(8,073)
Charge-offs	(8,051)	(15,364)	(11,401)
Recoveries	552	1,024	4,137
Allowance for credit losses, Ending balance	42,898	35,962	47,029
Non-accrual with No Allowance	5,196	3,780
Non-accrual with Allowance	17,428	14,794
Reserve	15,810	13,228
One-to-Four Family Residential and Cooperative/Condominium Apartment
Allowance for credit losses:
Allowance for credit losses, Beginning balance	6,813	5,969	5,932
Provision (recovery) for credit losses	2,688	858	37
Charge-offs		(14)
Allowance for credit losses, Ending balance	9,501	6,813	5,969
Non-accrual with Allowance	3,213	3,248
Reserve	31	133
Multifamily Residential and Residential Mixed-Use
Allowance for credit losses:
Allowance for credit losses, Beginning balance	7,237	8,360	7,816
Provision (recovery) for credit losses	9,385	(1,121)	542
Charge-offs	(4,677)	(2)
Recoveries	1		2
Allowance for credit losses, Ending balance	11,946	7,237	8,360
Non-Owner-Occupied Commercial Real Estate
Allowance for credit losses:
Allowance for credit losses, Beginning balance	19,623	20,153	2,131
Provision (recovery) for credit losses	9,176	(530)	17,968
Charge-offs	(6,926)
Recoveries	3		54
Allowance for credit losses, Ending balance	21,876	19,623	20,153
Non-accrual with No Allowance	16,456
Non-accrual with Allowance	6,504	6,620
Reserve	432	636
Acquisition, development, and construction ("ADC")
Allowance for credit losses:
Allowance for credit losses, Beginning balance	1,989	1,723	4,857
Provision (recovery) for credit losses	334	266	(3,134)
Allowance for credit losses, Ending balance	2,323	1,989	1,723
Non-accrual with Allowance	657	657
Reserve	287	205
Other Loans
Allowance for credit losses:
Allowance for credit losses, Beginning balance	119	273	751
Provision (recovery) for credit losses	179	129	(430)
Charge-offs	(110)	(300)	(53)
Recoveries	19	17	5
Allowance for credit losses, Ending balance	207	119	273
Non-accrual with Allowance	25
Reserve	25
Total (includes other loans)
Allowance for credit losses:
Allowance for credit losses, Beginning balance	71,743	83,507	83,853
Provision (recovery) for credit losses	36,197	2,875	6,910
Charge-offs	(19,764)	(15,680)	(11,454)
Recoveries	575	1,041	4,198
Allowance for credit losses, Ending balance	$ 88,751	$ 71,743	$ 83,507