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LOANS HELD FOR INVESTMENT, NET - Loans by Category Modified as TDRs (Details) $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2022 USD ($) | Dec. 31, 2022 USD ($) loan | Dec. 31, 2022 USD ($) contract | Dec. 31, 2021 USD ($) | Dec. 31, 2021 USD ($) loan | Dec. 31, 2021 USD ($) contract | Dec. 31, 2023 USD ($) loan | Dec. 31, 2020 USD ($)
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |  |  |
Allowance for credit losses | $ 83,507 | $ 83,507 | $ 83,507 |  |  |  | $ 71,743 |
Number of loans | loan |  |  |  |  |  |  | 0 |
Number of Loans | loan |  | 12 |  |  | 4 |  |  |
Pre-Modification Outstanding Recorded Investment | 37,463 |  |  | $ 10,923 |  |  |  |
Post-Modification Outstanding Recorded Investment | 37,467 |  |  | 10,955 |  |  |  |
TDRs |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |  |  |
Modifications recorded investment | 22,100 | $ 22,100 | 22,100 | 942 | $ 942 | $ 942 |  |
Commitments to lend additional amounts | 0 |  |  | 0 |  |  |  |
Allowance for credit losses | 9,100 | 9,100 | 9,100 | 48 | 48 | 48 |  |
Charge offs relating to TDRs | 0 |  |  | 0 |  |  |  |
Provision for Loan and Lease Losses |  |  |  | 48 |  |  |  |
C&I |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |  |  |
Allowance for credit losses | 39,853 | $ 39,853 | 39,853 | 35,331 | $ 35,331 | 35,331 | $ 28,977 | $ 12,737
Number of Loans | loan |  | 7 |  |  | 1 |  |  |
Pre-Modification Outstanding Recorded Investment | 21,934 |  |  | 456 |  |  |  |
Post-Modification Outstanding Recorded Investment | 21,938 |  |  | 488 |  |  |  |
One-to-four family residential and cooperative/condominium apartment |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |  |  |
Allowance for credit losses | 5,969 | $ 5,969 | 5,969 | 5,932 | $ 5,932 | 5,932 | 6,813 | 644
Number of Loans | loan |  | 2 |  |  | 2 |  |  |
Pre-Modification Outstanding Recorded Investment | 762 |  |  | 467 |  |  |  |
Post-Modification Outstanding Recorded Investment | 762 |  |  | 467 |  |  |  |
Multifamily residential and residential mixed-use |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |  |  |
Allowance for credit losses | 8,360 | $ 8,360 | 8,360 | 7,816 | $ 7,816 | 7,816 | 7,237 | 17,016
Commercial real estate ("CRE") |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |  |  |
Allowance for credit losses | 27,329 | $ 27,329 | $ 27,329 | 29,166 | $ 29,166 | $ 29,166 | 26,608 | 9,059
Number of Loans |  | 1 | 1 |  | 1 | 1 |  |
Pre-Modification Outstanding Recorded Investment | 991 |  |  | 10,000 |  |  |  |
Post-Modification Outstanding Recorded Investment | 991 |  |  | 10,000 |  |  |  |
Acquisition, development, and construction ("ADC") |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |  |  |
Allowance for credit losses | 1,723 | $ 1,723 | $ 1,723 | 4,857 | $ 4,857 | $ 4,857 | 1,989 | 1,993
Number of Loans |  | 1 | 1 |  |  |  |  |
Pre-Modification Outstanding Recorded Investment | 13,500 |  |  |  |  |  |  |
Post-Modification Outstanding Recorded Investment | 13,500 |  |  |  |  |  |  |
Other Loans |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |  |  |
Allowance for credit losses | 273 | $ 273 | $ 273 | $ 751 | $ 751 | $ 751 | $ 119 | $ 12
Number of Loans | loan |  | 1 |  |  |  |  |  |
Pre-Modification Outstanding Recorded Investment | 276 |  |  |  |  |  |  |
Post-Modification Outstanding Recorded Investment | $ 276 |  |  |  |  |  |  |

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