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LOANS HELD FOR INVESTMENT, NET - Past Due Status (Details) - USD ($) $ in Thousands | Jun. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Past Due, Financial Instrument [Abstract] |  |
Total | $ 10,870,030 | $ 10,869,328
Total Past Due |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 114,714 | 91,122
30 to 59 Days Past Due |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 28,148 | 10,330
60 to 89 Days Past Due |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 33,352 | 31,313
90 days or more past due |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 0 | 0
Non-Accrual |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 53,214 | 49,479
Current |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 10,755,316 | 10,778,206
Business Loans |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 2,901,948 | 2,725,726
Business Loans | Total Past Due |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 29,300 | 28,450
Business Loans | 30 to 59 Days Past Due |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 5,547 | 3,385
Business Loans | 60 to 89 Days Past Due |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 5,746 | 2,441
Business Loans | Non-Accrual |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 18,007 | 22,624
Business Loans | Current |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 2,872,648 | 2,697,276
One-to-Four Family Residential and Cooperative/Condominium Apartment |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 998,446 | 951,528
One-to-Four Family Residential and Cooperative/Condominium Apartment | Total Past Due |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 2,751 | 6,403
One-to-Four Family Residential and Cooperative/Condominium Apartment | 30 to 59 Days Past Due |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 1,109 | 1,919
One-to-Four Family Residential and Cooperative/Condominium Apartment | 60 to 89 Days Past Due |  |
Past Due, Financial Instrument [Abstract] |  |
Total |  | 1,271
One-to-Four Family Residential and Cooperative/Condominium Apartment | Non-Accrual |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 1,642 | 3,213
One-to-Four Family Residential and Cooperative/Condominium Apartment | Current |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 995,695 | 945,125
Multifamily Residential and Residential Mixed-Use |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 3,693,425 | 3,820,283
Multifamily Residential and Residential Mixed-Use | Total Past Due |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 48,919 | 31,360
Multifamily Residential and Residential Mixed-Use | 30 to 59 Days Past Due |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 21,314 | 3,759
Multifamily Residential and Residential Mixed-Use | 60 to 89 Days Past Due |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 27,605 | 27,601
Multifamily Residential and Residential Mixed-Use | 90 days or more past due |  |
Past Due, Financial Instrument [Abstract] |  |
Loans 90 Days or More Past Due and Still Accruing Interest | 0 |
Multifamily Residential and Residential Mixed-Use | Non-Accrual |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 0 |
Multifamily Residential and Residential Mixed-Use | Current |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 3,644,506 | 3,788,923
Non-Owner-Occupied Commercial Real Estate |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 3,128,120 | 3,230,535
Non-Owner-Occupied Commercial Real Estate | Real Estate Loan [Member] |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 3,128,120 | 3,230,535
Non-Owner-Occupied Commercial Real Estate | Real Estate Loan [Member] | Total Past Due |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 33,085 | 24,225
Non-Owner-Occupied Commercial Real Estate | Real Estate Loan [Member] | 30 to 59 Days Past Due |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 177 | 1,265
Non-Owner-Occupied Commercial Real Estate | Real Estate Loan [Member] | Non-Accrual |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 32,908 | 22,960
Non-Owner-Occupied Commercial Real Estate | Real Estate Loan [Member] | Current |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 3,095,035 | 3,206,310
Acquisition, development, and construction ("ADC") |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 141,755 | 136,172
Acquisition, development, and construction ("ADC") | Total Past Due |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 657 | 657
Acquisition, development, and construction ("ADC") | Non-Accrual |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 657 | 657
Acquisition, development, and construction ("ADC") | Current |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 141,098 | 135,515
Other Loans |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 6,336 | 5,084
Other Loans | Total Past Due |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 2 | 27
Other Loans | 30 to 59 Days Past Due |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 1 | 2
Other Loans | 60 to 89 Days Past Due |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 1 |
Other Loans | Non-Accrual |  |
Past Due, Financial Instrument [Abstract] |  |
Total |  | 25
Other Loans | Current |  |
Past Due, Financial Instrument [Abstract] |  |
Total | $ 6,334 | $ 5,057

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