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LOANS HELD FOR INVESTMENT, NET - Credit Quality Indicators (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2025 | Mar. 31, 2024 | Dec. 31, 2024
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |
Total | $ 10,866,802 |  | $ 10,869,328
Pass |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |
2025/2024 | 83,526 |  | 630,655
2024/2023 | 633,816 |  | 893,740
2023/2022 | 875,864 |  | 2,565,490
2022/2021 | 2,536,889 |  | 1,466,647
2021/2020 | 1,447,232 |  | 922,941
2020/2019 and Prior | 3,686,378 |  | 2,858,206
Revolving | 994,847 |  | 896,101
Revolving-Term | 92,133 |  | 100,957
Total | 10,350,685 |  | 10,334,737
Special Mention |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |
2025/2024 |  |  | 135
2024/2023 | 128 |  | 754
2023/2022 | 495 |  | 37,942
2022/2021 | 35,335 |  | 32,221
2021/2020 | 31,860 |  | 94,307
2020/2019 and Prior | 202,405 |  | 121,279
Revolving | 5,410 |  | 26,451
Revolving-Term | 9,222 |  | 14,497
Total | 284,855 |  | 327,586
Substandard |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |
2024/2023 |  |  | 398
2023/2022 | 378 |  | 1,985
2022/2021 | 3,952 |  | 18,953
2021/2020 | 18,953 |  | 39,164
2020/2019 and Prior | 166,725 |  | 108,772
Revolving | 3,749 |  |
Revolving-Term | 30,491 |  | 32,038
Total | 224,248 |  | 201,310
Doubtful |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |
2020/2019 and Prior | 612 |  | 611
Total | 612 |  | 611
Business Loans |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |
2025/2024 | 46,415 |  | 400,742
2024/2023 | 398,065 |  | 233,169
2023/2022 | 227,076 |  | 365,899
2022/2021 | 349,542 |  | 208,501
2021/2020 | 201,482 |  | 173,111
2020/2019 and Prior | 532,035 |  | 377,523
Revolving | 936,719 |  | 854,579
Revolving-Term | 96,867 |  | 112,202
Total | 2,788,201 |  | 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 |  |  | 267
YTD Gross Charge-Offs 2020/2019 and Prior |  |  | 586
YTD Gross Charge-Offs Revolving | 47 |  | 89
YTD Gross Charge-Offs Revolving-Term | 129 |  | 6,785
YTD Gross Charge-Offs | 176 | $ 796 | 8,051
Business Loans | Pass |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |
2025/2024 | 46,415 |  | 400,607
2024/2023 | 397,937 |  | 232,017
2023/2022 | 226,203 |  | 327,174
2022/2021 | 311,457 |  | 201,799
2021/2020 | 195,007 |  | 164,834
2020/2019 and Prior | 498,755 |  | 348,388
Revolving | 927,718 |  | 828,287
Revolving-Term | 58,722 |  | 67,238
Total | 2,662,214 |  | 2,570,344
Business Loans | Special Mention |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |
2025/2024 |  |  | 135
2024/2023 | 128 |  | 754
2023/2022 | 495 |  | 36,740
2022/2021 | 34,133 |  | 4,220
2021/2020 | 3,993 |  | 4,333
2020/2019 and Prior | 17,559 |  | 17,226
Revolving | 5,252 |  | 26,292
Revolving-Term | 9,222 |  | 14,497
Total | 70,782 |  | 104,197
Business Loans | Substandard |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |
2024/2023 |  |  | 398
2023/2022 | 378 |  | 1,985
2022/2021 | 3,952 |  | 2,482
2021/2020 | 2,482 |  | 3,944
2020/2019 and Prior | 15,109 |  | 11,298
Revolving | 3,749 |  |
Revolving-Term | 28,923 |  | 30,467
Total | 54,593 |  | 50,574
Business Loans | Doubtful |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |
2020/2019 and Prior | 612 |  | 611
Total | 612 |  | 611
One-to-Four Family Residential and Cooperative/Condominium Apartment |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |
2025/2024 | 28,063 |  | 134,804
2024/2023 | 133,899 |  | 159,300
2023/2022 | 157,062 |  | 202,706
2022/2021 | 200,806 |  | 98,491
2021/2020 | 97,158 |  | 64,077
2020/2019 and Prior | 309,054 |  | 255,989
Revolving | 25,062 |  | 26,883
Revolving-Term | 9,965 |  | 9,278
Total | 961,069 |  | 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 | 28,063 |  | 134,804
2024/2023 | 133,899 |  | 159,300
2023/2022 | 157,062 |  | 202,706
2022/2021 | 200,806 |  | 98,491
2021/2020 | 97,158 |  | 63,093
2020/2019 and Prior | 300,119 |  | 247,952
Revolving | 24,904 |  | 26,724
Revolving-Term | 9,054 |  | 8,364
Total | 951,065 |  | 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 | 707 |  | 711
Revolving | 158 |  | 159
Total | 865 |  | 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 | 8,228 |  | 7,326
Revolving-Term | 911 |  | 914
Total | 9,139 |  | 9,224
Multifamily Residential and Residential Mixed-Use |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |
2025/2024 |  |  | 21,810
2024/2023 | 21,661 |  | 252,975
2023/2022 | 251,744 |  | 1,286,821
2022/2021 | 1,280,151 |  | 572,408
2021/2020 | 569,167 |  | 300,825
2020/2019 and Prior | 1,648,101 |  | 1,376,892
Revolving | 4,848 |  | 4,285
Revolving-Term | 4,251 |  | 4,267
Total | 3,779,923 |  | 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 |  |  | 4,677
Multifamily Residential and Residential Mixed-Use | Pass |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |
2025/2024 |  |  | 21,810
2024/2023 | 21,661 |  | 252,975
2023/2022 | 251,744 |  | 1,285,619
2022/2021 | 1,278,949 |  | 560,039
2021/2020 | 556,818 |  | 286,653
2020/2019 and Prior | 1,487,533 |  | 1,239,261
Revolving | 4,848 |  | 4,285
Revolving-Term | 4,251 |  | 4,267
Total | 3,605,804 |  | 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 | 1,202 |  | 12,369
2021/2020 | 12,349 |  | 14,172
2020/2019 and Prior | 84,708 |  | 73,778
Total | 98,259 |  | 101,521
Multifamily Residential and Residential Mixed-Use | Substandard |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |
2020/2019 and Prior | 75,860 |  | 63,853
Total | 75,860 |  | 63,853
Non-Owner-Occupied Commercial Real Estate |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |
2025/2024 | 6,368 |  | 57,280
2024/2023 | 55,167 |  | 215,279
2023/2022 | 206,196 |  | 724,041
2022/2021 | 718,908 |  | 618,637
2021/2020 | 610,564 |  | 518,399
2020/2019 and Prior | 1,564,598 |  | 1,075,996
Revolving | 12,103 |  | 11,937
Revolving-Term | 16,994 |  | 8,966
Total | 3,190,898 |  | 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 | 5,259 |  |
YTD Gross Charge-Offs Revolving | 1,823 |  |
YTD Gross Charge-Offs Revolving-Term |  |  | 96
YTD Gross Charge-Offs | 7,082 |  | 6,926
Non-Owner-Occupied Commercial Real Estate | Pass |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |
2025/2024 | 6,368 |  | 57,280
2024/2023 | 55,167 |  | 215,279
2023/2022 | 206,196 |  | 724,041
2022/2021 | 718,908 |  | 601,508
2021/2020 | 593,440 |  | 408,361
2020/2019 and Prior | 1,397,639 |  | 1,020,137
Revolving | 12,103 |  | 11,937
Revolving-Term | 16,994 |  | 8,966
Total | 3,006,815 |  | 3,047,509
Non-Owner-Occupied Commercial Real Estate | Special Mention |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |
2022/2021 |  |  | 658
2021/2020 | 653 |  | 75,802
2020/2019 and Prior | 99,431 |  | 29,564
Total | 100,084 |  | 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 |  | 34,236
2020/2019 and Prior | 67,528 |  | 26,295
Total | 83,999 |  | 77,002
Non-Owner-Occupied Commercial Real Estate | Real estate loan |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |
Total | 3,190,898 |  | 3,230,535
Acquisition, development, and construction ("ADC") |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |
2025/2024 | 2,680 |  | 16,154
2024/2023 | 25,152 |  | 34,169
2023/2022 | 34,659 |  | 25,950
2022/2021 | 26,769 |  | 19,784
2021/2020 | 19,674 |  |
2020/2019 and Prior | 2,332 |  | 2,468
Revolving | 25,274 |  | 24,868
Revolving-Term | 3,769 |  | 12,779
Total | 140,309 |  | 136,172
Acquisition, development, and construction ("ADC") | Pass |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |
2025/2024 | 2,680 |  | 16,154
2024/2023 | 25,152 |  | 34,169
2023/2022 | 34,659 |  | 25,950
2022/2021 | 26,769 |  | 4,810
2021/2020 | 4,809 |  |
2020/2019 and Prior | 2,332 |  | 2,468
Revolving | 25,274 |  | 24,868
Revolving-Term | 3,112 |  | 12,122
Total | 124,787 |  | 120,541
Acquisition, development, and construction ("ADC") | Special Mention |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |
2022/2021 |  |  | 14,974
2021/2020 | 14,865 |  |
Total | 14,865 |  | 14,974
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 | 6,402 |  | 5,084
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract] |  |  |
YTD Gross Charge-Offs | 35 | $ 30 |
Other Loans | Credit Risk Profile |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |
Total | 6,402 |  | 5,084
Other Loans | Performing | Credit Risk Profile |  |  |
Credit Risk Profile of Real Estate Loans [Abstract] |  |  |
Total | 6,402 |  | 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 | 83,526 |  | 630,790
2024/2023 | 633,944 |  | 894,892
2023/2022 | 876,737 |  | 2,605,417
2022/2021 | 2,576,176 |  | 1,517,821
2021/2020 | 1,498,045 |  | 1,056,412
2020/2019 and Prior | 4,056,120 |  | 3,088,868
Revolving | 1,004,006 |  | 922,552
Revolving-Term | 131,846 |  | 147,492
Total | 10,860,400 |  | 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 |  |  | 5,592
YTD Gross Charge-Offs 2020/2019 and Prior | 5,303 |  | 3,571
YTD Gross Charge-Offs Revolving | 1,870 |  | 89
YTD Gross Charge-Offs Revolving-Term | 129 |  | 6,881
YTD Gross Charge-Offs | $ 7,302 |  | $ 19,654

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