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LOANS HELD FOR INVESTMENT, NET - Credit Quality Indicators (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024 | Dec. 31, 2024
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |  |  |
Total | $ 10,870,030 |  | $ 10,870,030 |  | $ 10,869,328
Pass |  |  |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |  |  |
2025/2024 | 373,095 |  | 373,095 |  | 630,655
2024/2023 | 629,034 |  | 629,034 |  | 893,740
2023/2022 | 851,506 |  | 851,506 |  | 2,565,490
2022/2021 | 2,468,660 |  | 2,468,660 |  | 1,466,647
2021/2020 | 1,426,622 |  | 1,426,622 |  | 922,941
2020/2019 and Prior | 3,502,483 |  | 3,502,483 |  | 2,858,206
Revolving | 993,340 |  | 993,340 |  | 896,101
Revolving-Term | 99,760 |  | 99,760 |  | 100,957
Total | 10,344,500 |  | 10,344,500 |  | 10,334,737
Special Mention |  |  |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |  |  |
2025/2024 |  |  |  |  | 135
2024/2023 | 206 |  | 206 |  | 754
2023/2022 | 476 |  | 476 |  | 37,942
2022/2021 | 50,034 |  | 50,034 |  | 32,221
2021/2020 | 32,172 |  | 32,172 |  | 94,307
2020/2019 and Prior | 196,083 |  | 196,083 |  | 121,279
Revolving | 4,330 |  | 4,330 |  | 26,451
Revolving-Term | 7,345 |  | 7,345 |  | 14,497
Total | 290,646 |  | 290,646 |  | 327,586
Substandard |  |  |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |  |  |
2024/2023 |  |  |  |  | 398
2023/2022 | 445 |  | 445 |  | 1,985
2022/2021 | 7,491 |  | 7,491 |  | 18,953
2021/2020 | 27,341 |  | 27,341 |  | 39,164
2020/2019 and Prior | 163,812 |  | 163,812 |  | 108,772
Revolving | 3,507 |  | 3,507 |  |
Revolving-Term | 25,341 |  | 25,341 |  | 32,038
Total | 227,937 |  | 227,937 |  | 201,310
Doubtful |  |  |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |  |  |
2020/2019 and Prior | 611 |  | 611 |  | 611
Total | 611 |  | 611 |  | 611
Business Loans |  |  |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |  |  |
2025/2024 | 218,270 |  | 218,270 |  | 400,742
2024/2023 | 379,362 |  | 379,362 |  | 233,169
2023/2022 | 224,437 |  | 224,437 |  | 365,899
2022/2021 | 335,635 |  | 335,635 |  | 208,501
2021/2020 | 212,098 |  | 212,098 |  | 173,111
2020/2019 and Prior | 495,871 |  | 495,871 |  | 377,523
Revolving | 937,793 |  | 937,793 |  | 854,579
Revolving-Term | 98,482 |  | 98,482 |  | 112,202
Total | 2,901,948 |  | 2,901,948 |  | 2,725,726
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract] |  |  |  |  |
YTD Gross Charge-Offs 2023/2022 |  |  |  |  | 158
YTD Gross Charge-Offs 2022/2021 |  |  |  |  | 166
YTD Gross Charge-Offs 2021/2020 |  |  | 209 |  | 267
YTD Gross Charge-Offs 2020/2019 and Prior |  |  |  |  | 586
YTD Gross Charge-Offs Revolving |  |  | 4,296 |  | 89
YTD Gross Charge-Offs Revolving-Term |  |  | 728 |  | 6,785
YTD Gross Charge-Offs | 5,057 | $ 1,179 | 5,233 | $ 1,975 | 8,051
Business Loans | Pass |  |  |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |  |  |
2025/2024 | 218,270 |  | 218,270 |  | 400,607
2024/2023 | 379,156 |  | 379,156 |  | 232,017
2023/2022 | 223,516 |  | 223,516 |  | 327,174
2022/2021 | 288,487 |  | 288,487 |  | 201,799
2021/2020 | 187,106 |  | 187,106 |  | 164,834
2020/2019 and Prior | 466,326 |  | 466,326 |  | 348,388
Revolving | 930,114 |  | 930,114 |  | 828,287
Revolving-Term | 67,361 |  | 67,361 |  | 67,238
Total | 2,760,336 |  | 2,760,336 |  | 2,570,344
Business Loans | Special Mention |  |  |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |  |  |
2025/2024 |  |  |  |  | 135
2024/2023 | 206 |  | 206 |  | 754
2023/2022 | 476 |  | 476 |  | 36,740
2022/2021 | 42,819 |  | 42,819 |  | 4,220
2021/2020 | 17,191 |  | 17,191 |  | 4,333
2020/2019 and Prior | 17,070 |  | 17,070 |  | 17,226
Revolving | 4,330 |  | 4,330 |  | 26,292
Revolving-Term | 7,345 |  | 7,345 |  | 14,497
Total | 89,437 |  | 89,437 |  | 104,197
Business Loans | Substandard |  |  |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |  |  |
2024/2023 |  |  |  |  | 398
2023/2022 | 445 |  | 445 |  | 1,985
2022/2021 | 4,329 |  | 4,329 |  | 2,482
2021/2020 | 7,801 |  | 7,801 |  | 3,944
2020/2019 and Prior | 11,864 |  | 11,864 |  | 11,298
Revolving | 3,349 |  | 3,349 |  |
Revolving-Term | 23,776 |  | 23,776 |  | 30,467
Total | 51,564 |  | 51,564 |  | 50,574
Business Loans | Doubtful |  |  |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |  |  |
2020/2019 and Prior | 611 |  | 611 |  | 611
Total | 611 |  | 611 |  | 611
One-to-Four Family Residential and Cooperative/Condominium Apartment |  |  |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |  |  |
2025/2024 | 85,329 |  | 85,329 |  | 134,804
2024/2023 | 131,921 |  | 131,921 |  | 159,300
2023/2022 | 154,754 |  | 154,754 |  | 202,706
2022/2021 | 198,408 |  | 198,408 |  | 98,491
2021/2020 | 96,675 |  | 96,675 |  | 64,077
2020/2019 and Prior | 296,613 |  | 296,613 |  | 255,989
Revolving | 24,322 |  | 24,322 |  | 26,883
Revolving-Term | 10,424 |  | 10,424 |  | 9,278
Total | 998,446 |  | 998,446 |  | 951,528
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract] |  |  |  |  |
YTD Gross Charge-Offs 2020/2019 and Prior |  |  | 44 |  |
YTD Gross Charge-Offs |  |  | 44 |  |
One-to-Four Family Residential and Cooperative/Condominium Apartment | Pass |  |  |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |  |  |
2025/2024 | 85,329 |  | 85,329 |  | 134,804
2024/2023 | 131,921 |  | 131,921 |  | 159,300
2023/2022 | 154,754 |  | 154,754 |  | 202,706
2022/2021 | 198,408 |  | 198,408 |  | 98,491
2021/2020 | 96,675 |  | 96,675 |  | 63,093
2020/2019 and Prior | 292,752 |  | 292,752 |  | 247,952
Revolving | 24,164 |  | 24,164 |  | 26,724
Revolving-Term | 9,516 |  | 9,516 |  | 8,364
Total | 993,519 |  | 993,519 |  | 941,434
One-to-Four Family Residential and Cooperative/Condominium Apartment | Special Mention |  |  |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |  |  |
2020/2019 and Prior | 30 |  | 30 |  | 711
Revolving |  |  |  |  | 159
Total | 30 |  | 30 |  | 870
One-to-Four Family Residential and Cooperative/Condominium Apartment | Substandard |  |  |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |  |  |
2021/2020 |  |  |  |  | 984
2020/2019 and Prior | 3,831 |  | 3,831 |  | 7,326
Revolving | 158 |  | 158 |  |
Revolving-Term | 908 |  | 908 |  | 914
Total | 4,897 |  | 4,897 |  | 9,224
Multifamily Residential and Residential Mixed-Use |  |  |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |  |  |
2025/2024 | 6,008 |  | 6,008 |  | 21,810
2024/2023 | 21,504 |  | 21,504 |  | 252,975
2023/2022 | 231,403 |  | 231,403 |  | 1,286,821
2022/2021 | 1,271,296 |  | 1,271,296 |  | 572,408
2021/2020 | 566,032 |  | 566,032 |  | 300,825
2020/2019 and Prior | 1,587,527 |  | 1,587,527 |  | 1,376,892
Revolving | 5,419 |  | 5,419 |  | 4,285
Revolving-Term | 4,236 |  | 4,236 |  | 4,267
Total | 3,693,425 |  | 3,693,425 |  | 3,820,283
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract] |  |  |  |  |
YTD Gross Charge-Offs 2025/2024 |  |  |  |  | 400
YTD Gross Charge-Offs 2021/2020 |  |  |  |  | 1,292
YTD Gross Charge-Offs 2020/2019 and Prior |  |  |  |  | 2,985
YTD Gross Charge-Offs |  | 2,551 |  | 2,551 | 4,677
Multifamily Residential and Residential Mixed-Use | Pass |  |  |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |  |  |
2025/2024 | 6,008 |  | 6,008 |  | 21,810
2024/2023 | 21,504 |  | 21,504 |  | 252,975
2023/2022 | 231,403 |  | 231,403 |  | 1,285,619
2022/2021 | 1,260,919 |  | 1,260,919 |  | 560,039
2021/2020 | 548,630 |  | 548,630 |  | 286,653
2020/2019 and Prior | 1,424,281 |  | 1,424,281 |  | 1,239,261
Revolving | 5,419 |  | 5,419 |  | 4,285
Revolving-Term | 4,236 |  | 4,236 |  | 4,267
Total | 3,502,400 |  | 3,502,400 |  | 3,654,909
Multifamily Residential and Residential Mixed-Use | Special Mention |  |  |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |  |  |
2023/2022 |  |  |  |  | 1,202
2022/2021 | 7,215 |  | 7,215 |  | 12,369
2021/2020 | 14,333 |  | 14,333 |  | 14,172
2020/2019 and Prior | 83,652 |  | 83,652 |  | 73,778
Total | 105,200 |  | 105,200 |  | 101,521
Multifamily Residential and Residential Mixed-Use | Substandard |  |  |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |  |  |
2022/2021 | 3,162 |  | 3,162 |  |
2021/2020 | 3,069 |  | 3,069 |  |
2020/2019 and Prior | 79,594 |  | 79,594 |  | 63,853
Total | 85,825 |  | 85,825 |  | 63,853
Non-Owner-Occupied Commercial Real Estate |  |  |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |  |  |
2025/2024 | 50,150 |  | 50,150 |  | 57,280
2024/2023 | 54,992 |  | 54,992 |  | 215,279
2023/2022 | 204,141 |  | 204,141 |  | 724,041
2022/2021 | 705,077 |  | 705,077 |  | 618,637
2021/2020 | 606,533 |  | 606,533 |  | 518,399
2020/2019 and Prior | 1,482,918 |  | 1,482,918 |  | 1,075,996
Revolving | 8,171 |  | 8,171 |  | 11,937
Revolving-Term | 16,138 |  | 16,138 |  | 8,966
Total | 3,128,120 |  | 3,128,120 |  | 3,230,535
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract] |  |  |  |  |
YTD Gross Charge-Offs 2022/2021 |  |  |  |  | 2,797
YTD Gross Charge-Offs 2021/2020 |  |  |  |  | 4,033
YTD Gross Charge-Offs 2020/2019 and Prior |  |  | 5,675 |  |
YTD Gross Charge-Offs Revolving |  |  | 1,823 |  |
YTD Gross Charge-Offs Revolving-Term |  |  |  |  | 96
YTD Gross Charge-Offs | 416 |  | 7,498 |  | 6,926
Non-Owner-Occupied Commercial Real Estate | Pass |  |  |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |  |  |
2025/2024 | 50,150 |  | 50,150 |  | 57,280
2024/2023 | 54,992 |  | 54,992 |  | 215,279
2023/2022 | 204,141 |  | 204,141 |  | 724,041
2022/2021 | 705,077 |  | 705,077 |  | 601,508
2021/2020 | 589,414 |  | 589,414 |  | 408,361
2020/2019 and Prior | 1,319,064 |  | 1,319,064 |  | 1,020,137
Revolving | 8,171 |  | 8,171 |  | 11,937
Revolving-Term | 16,138 |  | 16,138 |  | 8,966
Total | 2,947,147 |  | 2,947,147 |  | 3,047,509
Non-Owner-Occupied Commercial Real Estate | Special Mention |  |  |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |  |  |
2022/2021 |  |  |  |  | 658
2021/2020 | 648 |  | 648 |  | 75,802
2020/2019 and Prior | 95,331 |  | 95,331 |  | 29,564
Total | 95,979 |  | 95,979 |  | 106,024
Non-Owner-Occupied Commercial Real Estate | Substandard |  |  |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |  |  |
2022/2021 |  |  |  |  | 16,471
2021/2020 | 16,471 |  | 16,471 |  | 34,236
2020/2019 and Prior | 68,523 |  | 68,523 |  | 26,295
Total | 84,994 |  | 84,994 |  | 77,002
Non-Owner-Occupied Commercial Real Estate | Real estate loan |  |  |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |  |  |
Total | 3,128,120 |  | 3,128,120 |  | 3,230,535
Acquisition, development, and construction ("ADC") |  |  |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |  |  |
2025/2024 | 13,338 |  | 13,338 |  | 16,154
2024/2023 | 41,461 |  | 41,461 |  | 34,169
2023/2022 | 37,692 |  | 37,692 |  | 25,950
2022/2021 | 15,769 |  | 15,769 |  | 19,784
2021/2020 | 4,797 |  | 4,797 |  |
2020/2019 and Prior | 60 |  | 60 |  | 2,468
Revolving | 25,472 |  | 25,472 |  | 24,868
Revolving-Term | 3,166 |  | 3,166 |  | 12,779
Total | 141,755 |  | 141,755 |  | 136,172
Acquisition, development, and construction ("ADC") | Pass |  |  |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |  |  |
2025/2024 | 13,338 |  | 13,338 |  | 16,154
2024/2023 | 41,461 |  | 41,461 |  | 34,169
2023/2022 | 37,692 |  | 37,692 |  | 25,950
2022/2021 | 15,769 |  | 15,769 |  | 4,810
2021/2020 | 4,797 |  | 4,797 |  |
2020/2019 and Prior | 60 |  | 60 |  | 2,468
Revolving | 25,472 |  | 25,472 |  | 24,868
Revolving-Term | 2,509 |  | 2,509 |  | 12,122
Total | 141,098 |  | 141,098 |  | 120,541
Acquisition, development, and construction ("ADC") | Special Mention |  |  |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |  |  |
2022/2021 |  |  |  |  | 14,974
Total |  |  |  |  | 14,974
Acquisition, development, and construction ("ADC") | Substandard |  |  |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |  |  |
Revolving-Term | 657 |  | 657 |  | 657
Total | 657 |  | 657 |  | 657
Other Loans |  |  |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |  |  |
Total | 6,336 |  | 6,336 |  | 5,084
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract] |  |  |  |  |
YTD Gross Charge-Offs | 9 | $ 15 | 44 | $ 45 |
Other Loans | Credit Risk Profile |  |  |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |  |  |
Total | 6,336 |  | 6,336 |  | 5,084
Other Loans | Performing | Credit Risk Profile |  |  |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |  |  |
Total | 6,336 |  | 6,336 |  | 5,059
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] |  |  |  |  |
2025/2024 | 373,095 |  | 373,095 |  | 630,790
2024/2023 | 629,240 |  | 629,240 |  | 894,892
2023/2022 | 852,427 |  | 852,427 |  | 2,605,417
2022/2021 | 2,526,185 |  | 2,526,185 |  | 1,517,821
2021/2020 | 1,486,135 |  | 1,486,135 |  | 1,056,412
2020/2019 and Prior | 3,862,989 |  | 3,862,989 |  | 3,088,868
Revolving | 1,001,177 |  | 1,001,177 |  | 922,552
Revolving-Term | 132,446 |  | 132,446 |  | 147,492
Total | $ 10,863,694 |  | 10,863,694 |  | 10,864,244
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract] |  |  |  |  |
YTD Gross Charge-Offs 2025/2024 |  |  |  |  | 400
YTD Gross Charge-Offs 2023/2022 |  |  |  |  | 158
YTD Gross Charge-Offs 2022/2021 |  |  |  |  | 2,963
YTD Gross Charge-Offs 2021/2020 |  |  | 209 |  | 5,592
YTD Gross Charge-Offs 2020/2019 and Prior |  |  | 5,719 |  | 3,571
YTD Gross Charge-Offs Revolving |  |  | 6,119 |  | 89
YTD Gross Charge-Offs Revolving-Term |  |  | 728 |  | 6,881
YTD Gross Charge-Offs |  |  | $ 12,775 |  | $ 19,654

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