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LOANS HELD FOR INVESTMENT, NET - Credit Quality Indicators (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |
Total | $ 10,869,328 | $ 10,766,837 |
Pass |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |
2024/2023 | 630,655 | 922,902 |
2023/2022 | 893,740 | 2,700,103 |
2022/2021 | 2,565,490 | 1,582,274 |
2021/2020 | 1,466,647 | 954,855 |
2020/2019 | 922,941 | 960,030 |
2019/2018 and Prior | 2,858,206 | 2,257,567 |
Revolving | 896,101 | 704,128 |
Revolving-Term | 100,957 | 60,048 |
Total | 10,334,737 | 10,141,907 |
Special Mention |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |
2024/2023 | 135 | 481 |
2023/2022 | 754 | 53,182 |
2022/2021 | 37,942 | 45,366 |
2021/2020 | 32,221 | 92,825 |
2020/2019 | 94,307 | 27,827 |
2019/2018 and Prior | 121,279 | 70,219 |
Revolving | 26,451 | 21,267 |
Revolving-Term | 14,497 | 26,082 |
Total | 327,586 | 337,249 |
Substandard |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |
2023/2022 | 398 | 1,857 |
2022/2021 | 1,985 | 2,196 |
2021/2020 | 18,953 | 96,805 |
2020/2019 | 39,164 | 14,483 |
2019/2018 and Prior | 108,772 | 130,103 |
Revolving |  | 15,567 |
Revolving-Term | 32,038 | 20,167 |
Total | 201,310 | 281,178 |
Doubtful |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |
2019/2018 and Prior | 611 | 748 |
Total | 611 | 748 |
Excludes Other Loans |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |
2024/2023 |  | 923,383 |
2023/2022 |  | 2,755,142 |
2022/2021 |  | 1,629,836 |
2021/2020 |  | 1,144,485 |
2020/2019 |  | 1,002,340 |
2019/2018 and Prior |  | 2,458,637 |
Revolving |  | 740,962 |
Revolving-Term |  | 106,297 |
Total |  | 10,761,082 |
Business Loans |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |
2024/2023 | 400,742 | 259,180 |
2023/2022 | 233,169 | 434,299 |
2022/2021 | 365,899 | 200,169 |
2021/2020 | 208,501 | 165,092 |
2020/2019 | 173,111 | 160,799 |
2019/2018 and Prior | 377,523 | 339,404 |
Revolving | 854,579 | 670,394 |
Revolving-Term | 112,202 | 78,834 |
Total | 2,725,726 | 2,308,171 |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract] |  |  |
YTD Gross Charge-Offs 2022/2021 | 158 | 77 |
YTD Gross Charge-Offs 2021/2020 | 166 | 38 |
YTD Gross Charge-Offs 2020/2019 | 267 | 4,166 |
YTD Gross Charge-Offs 2019/2018 and Prior | 586 | 2,229 |
YTD Gross Charge-Offs Revolving | 89 | 5,464 |
YTD Gross Charge-Offs Revolving-Term | 6,785 | 3,390 |
YTD Gross Charge-Offs | 8,051 | 15,364 | $ 11,401
Business Loans | Pass |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |
2024/2023 | 400,607 | 258,699 |
2023/2022 | 232,017 | 390,760 |
2022/2021 | 327,174 | 196,790 |
2021/2020 | 201,799 | 144,796 |
2020/2019 | 164,834 | 150,871 |
2019/2018 and Prior | 348,388 | 305,258 |
Revolving | 828,287 | 633,719 |
Revolving-Term | 67,238 | 35,079 |
Total | 2,570,344 | 2,115,972 |
Business Loans | Special Mention |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |
2024/2023 | 135 | 481 |
2023/2022 | 754 | 41,682 |
2022/2021 | 36,740 | 1,199 |
2021/2020 | 4,220 | 13,567 |
2020/2019 | 4,333 | 7,125 |
2019/2018 and Prior | 17,226 | 3,150 |
Revolving | 26,292 | 21,108 |
Revolving-Term | 14,497 | 25,306 |
Total | 104,197 | 113,618 |
Business Loans | Substandard |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |
2023/2022 | 398 | 1,857 |
2022/2021 | 1,985 | 2,180 |
2021/2020 | 2,482 | 6,729 |
2020/2019 | 3,944 | 2,803 |
2019/2018 and Prior | 11,298 | 30,248 |
Revolving |  | 15,567 |
Revolving-Term | 30,467 | 18,449 |
Total | 50,574 | 77,833 |
Business Loans | Doubtful |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |
2019/2018 and Prior | 611 | 748 |
Total | 611 | 748 |
One-to-Four Family Residential and Cooperative/Condominium Apartment |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |
2024/2023 | 134,804 | 170,601 |
2023/2022 | 159,300 | 213,479 |
2022/2021 | 202,706 | 102,684 |
2021/2020 | 98,491 | 70,529 |
2020/2019 | 64,077 | 62,693 |
2019/2018 and Prior | 255,989 | 221,875 |
Revolving | 26,883 | 31,364 |
Revolving-Term | 9,278 | 14,330 |
Total | 951,528 | 887,555 |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract] |  |  |
YTD Gross Charge-Offs Revolving-Term |  | 14 |
YTD Gross Charge-Offs |  | 14 |
One-to-Four Family Residential and Cooperative/Condominium Apartment | Pass |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |
2024/2023 | 134,804 | 170,601 |
2023/2022 | 159,300 | 213,479 |
2022/2021 | 202,706 | 102,684 |
2021/2020 | 98,491 | 69,524 |
2020/2019 | 63,093 | 62,356 |
2019/2018 and Prior | 247,952 | 213,131 |
Revolving | 26,724 | 31,205 |
Revolving-Term | 8,364 | 12,493 |
Total | 941,434 | 875,473 |
One-to-Four Family Residential and Cooperative/Condominium Apartment | Special Mention |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |
2019/2018 and Prior | 711 | 33 |
Revolving | 159 | 159 |
Revolving-Term |  | 776 |
Total | 870 | 968 |
One-to-Four Family Residential and Cooperative/Condominium Apartment | Substandard |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |
2021/2020 |  | 1,005 |
2020/2019 | 984 | 337 |
2019/2018 and Prior | 7,326 | 8,711 |
Revolving-Term | 914 | 1,061 |
Total | 9,224 | 11,114 |
Multifamily Residential and Residential Mixed-Use |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |
2024/2023 | 21,810 | 256,822 |
2023/2022 | 252,975 | 1,340,197 |
2022/2021 | 1,286,821 | 587,686 |
2021/2020 | 572,408 | 316,312 |
2020/2019 | 300,825 | 393,912 |
2019/2018 and Prior | 1,376,892 | 1,113,081 |
Revolving | 4,285 | 4,841 |
Revolving-Term | 4,267 | 4,325 |
Total | 3,820,283 | 4,017,176 |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract] |  |  |
YTD Gross Charge-Offs 2024/2023 | 400 |  |
YTD Gross Charge-Offs 2020/2019 | 1,292 |  |
YTD Gross Charge-Offs 2019/2018 and Prior | 2,985 | 2 |
YTD Gross Charge-Offs | 4,677 | 2 |
Multifamily Residential and Residential Mixed-Use | Pass |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |
2024/2023 | 21,810 | 256,822 |
2023/2022 | 252,975 | 1,340,197 |
2022/2021 | 1,285,619 | 578,352 |
2021/2020 | 560,039 | 283,633 |
2020/2019 | 286,653 | 384,937 |
2019/2018 and Prior | 1,239,261 | 981,820 |
Revolving | 4,285 | 4,841 |
Revolving-Term | 4,267 | 4,325 |
Total | 3,654,909 | 3,834,927 |
Multifamily Residential and Residential Mixed-Use | Special Mention |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |
2022/2021 | 1,202 | 9,334 |
2021/2020 | 12,369 | 3,880 |
2020/2019 | 14,172 | 3,886 |
2019/2018 and Prior | 73,778 | 64,273 |
Total | 101,521 | 81,373 |
Multifamily Residential and Residential Mixed-Use | Substandard |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |
2021/2020 |  | 28,799 |
2020/2019 |  | 5,089 |
2019/2018 and Prior | 63,853 | 66,988 |
Total | 63,853 | 100,876 |
Non-Owner-Occupied Commercial Real Estate |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |
2024/2023 | 57,280 | 220,045 |
2023/2022 | 215,279 | 738,133 |
2022/2021 | 724,041 | 665,134 |
2021/2020 | 618,637 | 582,652 |
2020/2019 | 518,399 | 370,018 |
2019/2018 and Prior | 1,075,996 | 783,840 |
Revolving | 11,937 | 11,919 |
Revolving-Term | 8,966 | 7,926 |
Total | 3,230,535 | 3,379,667 |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract] |  |  |
YTD Gross Charge-Offs 2021/2020 | 2,797 |  |
YTD Gross Charge-Offs 2020/2019 | 4,033 |  |
YTD Gross Charge-Offs Revolving-Term | 96 |  |
YTD Gross Charge-Offs | 6,926 |  |
Non-Owner-Occupied Commercial Real Estate | Pass |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |
2024/2023 | 57,280 | 220,045 |
2023/2022 | 215,279 | 738,133 |
2022/2021 | 724,041 | 645,246 |
2021/2020 | 601,508 | 447,002 |
2020/2019 | 408,361 | 359,201 |
2019/2018 and Prior | 1,020,137 | 756,921 |
Revolving | 11,937 | 11,919 |
Revolving-Term | 8,966 | 7,926 |
Total | 3,047,509 | 3,186,393 |
Non-Owner-Occupied Commercial Real Estate | Special Mention |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |
2022/2021 |  | 19,872 |
2021/2020 | 658 | 75,378 |
2020/2019 | 75,802 | 4,563 |
2019/2018 and Prior | 29,564 | 2,763 |
Total | 106,024 | 102,576 |
Non-Owner-Occupied Commercial Real Estate | Substandard |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |
2022/2021 |  | 16 |
2021/2020 | 16,471 | 60,272 |
2020/2019 | 34,236 | 6,254 |
2019/2018 and Prior | 26,295 | 24,156 |
Total | 77,002 | 90,698 |
Non-Owner-Occupied Commercial Real Estate | Real estate loan |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |
Total | 3,230,535 | 3,379,667 |
Acquisition, development, and construction ("ADC") |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |
2024/2023 | 16,154 | 16,735 |
2023/2022 | 34,169 | 29,034 |
2022/2021 | 25,950 | 74,163 |
2021/2020 | 19,784 | 9,900 |
2020/2019 |  | 14,918 |
2019/2018 and Prior | 2,468 | 437 |
Revolving | 24,868 | 22,444 |
Revolving-Term | 12,779 | 882 |
Total | 136,172 | 168,513 |
Acquisition, development, and construction ("ADC") | Pass |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |
2024/2023 | 16,154 | 16,735 |
2023/2022 | 34,169 | 17,534 |
2022/2021 | 25,950 | 59,202 |
2021/2020 | 4,810 | 9,900 |
2020/2019 |  | 2,665 |
2019/2018 and Prior | 2,468 | 437 |
Revolving | 24,868 | 22,444 |
Revolving-Term | 12,122 | 225 |
Total | 120,541 | 129,142 |
Acquisition, development, and construction ("ADC") | Special Mention |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |
2023/2022 |  | 11,500 |
2022/2021 |  | 14,961 |
2021/2020 | 14,974 |  |
2020/2019 |  | 12,253 |
Total | 14,974 | 38,714 |
Acquisition, development, and construction ("ADC") | Substandard |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |
Revolving-Term | 657 | 657 |
Total | 657 | 657 |
Other Loans |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |
Total | 5,084 | 5,755 |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract] |  |  |
YTD Gross Charge-Offs | 110 | 300 | $ 53
Other Loans | Credit Risk Profile |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |
Total | 5,084 | 5,755 |
Other Loans | Performing | Credit Risk Profile |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |
Total | 5,059 | 5,755 |
Other Loans | Non-accrual | Credit Risk Profile |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |
Total | 25 |  |
Excludes Other Loans |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |
2024/2023 | 630,790 |  |
2023/2022 | 894,892 |  |
2022/2021 | 2,605,417 |  |
2021/2020 | 1,517,821 |  |
2020/2019 | 1,056,412 |  |
2019/2018 and Prior | 3,088,868 |  |
Revolving | 922,552 |  |
Revolving-Term | 147,492 |  |
Total | 10,864,244 |  |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract] |  |  |
YTD Gross Charge-Offs 2024/2023 | 400 |  |
YTD Gross Charge-Offs 2022/2021 | 158 | 77 |
YTD Gross Charge-Offs 2021/2020 | 2,963 | 38 |
YTD Gross Charge-Offs 2020/2019 | 5,592 | 4,166 |
YTD Gross Charge-Offs 2019/2018 and Prior | 3,571 | 2,231 |
YTD Gross Charge-Offs Revolving | 89 | 5,464 |
YTD Gross Charge-Offs Revolving-Term | 6,881 | 3,404 |
YTD Gross Charge-Offs | $ 19,654 | $ 15,380 |

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