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LOANS HELD FOR INVESTMENT, NET - Past Due Status (Details) - USD ($) $ in Thousands | Mar. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Past Due, Financial Instrument [Abstract] |  |
Total | $ 10,866,802 | $ 10,869,328
Total Past Due |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 106,530 | 91,122
30 to 59 Days Past Due |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 45,977 | 10,330
60 to 89 Days Past Due |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 2,512 | 31,313
90 days or more past due |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 0 | 0
Non-Accrual |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 58,041 | 49,479
Current |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 10,760,272 | 10,778,206
Business Loans |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 2,788,201 | 2,725,726
Business Loans | Total Past Due |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 28,382 | 28,450
Business Loans | 30 to 59 Days Past Due |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 6,287 | 3,385
Business Loans | 60 to 89 Days Past Due |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 151 | 2,441
Business Loans | Non-Accrual |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 21,944 | 22,624
Business Loans | Current |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 2,759,819 | 2,697,276
One-to-Four Family Residential and Cooperative/Condominium Apartment |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 961,069 | 951,528
One-to-Four Family Residential and Cooperative/Condominium Apartment | Total Past Due |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 11,663 | 6,403
One-to-Four Family Residential and Cooperative/Condominium Apartment | 30 to 59 Days Past Due |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 7,406 | 1,919
One-to-Four Family Residential and Cooperative/Condominium Apartment | 60 to 89 Days Past Due |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 494 | 1,271
One-to-Four Family Residential and Cooperative/Condominium Apartment | Non-Accrual |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 3,763 | 3,213
One-to-Four Family Residential and Cooperative/Condominium Apartment | Current |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 949,406 | 945,125
Multifamily Residential and Residential Mixed-Use |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 3,779,923 | 3,820,283
Multifamily Residential and Residential Mixed-Use | Total Past Due |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 31,357 | 31,360
Multifamily Residential and Residential Mixed-Use | 30 to 59 Days Past Due |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 31,357 | 3,759
Multifamily Residential and Residential Mixed-Use | 60 to 89 Days Past Due |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 0 | 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 | 3,748,566 | 3,788,923
Non-Owner-Occupied Commercial Real Estate |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 3,190,898 | 3,230,535
Non-Owner-Occupied Commercial Real Estate | Real Estate Loan [Member] |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 3,190,898 | 3,230,535
Non-Owner-Occupied Commercial Real Estate | Real Estate Loan [Member] | Total Past Due |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 34,471 | 24,225
Non-Owner-Occupied Commercial Real Estate | Real Estate Loan [Member] | 30 to 59 Days Past Due |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 927 | 1,265
Non-Owner-Occupied Commercial Real Estate | Real Estate Loan [Member] | 60 to 89 Days Past Due |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 1,867 |
Non-Owner-Occupied Commercial Real Estate | Real Estate Loan [Member] | Non-Accrual |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 31,677 | 22,960
Non-Owner-Occupied Commercial Real Estate | Real Estate Loan [Member] | Current |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 3,156,427 | 3,206,310
Acquisition, development, and construction ("ADC") |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 140,309 | 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 | 139,652 | 135,515
Other Loans |  |
Past Due, Financial Instrument [Abstract] |  |
Total | 6,402 | 5,084
Other Loans | Total Past Due |  |
Past Due, Financial Instrument [Abstract] |  |
Total |  | 27
Other Loans | 30 to 59 Days Past Due |  |
Past Due, Financial Instrument [Abstract] |  |
Total |  | 2
Other Loans | Non-Accrual |  |
Past Due, Financial Instrument [Abstract] |  |
Total |  | 25
Other Loans | Current |  |
Past Due, Financial Instrument [Abstract] |  |
Total | $ 6,402 | $ 5,057

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