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LOANS AND ALLOWANCE FOR CREDIT LOSSES - Schedule of Loans Receivable (Details) - USD ($) $ in Thousands | 3 Months Ended |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Sep. 30, 2023 | Jul. 25, 2023 | Jun. 30, 2023 | Dec. 31, 2022 | Sep. 30, 2022 | Jun. 30, 2022 | Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |
Loans receivable | $ 6,961,032 |  |  | $ 7,115,038 |  |  |
Allowance for loan losses | (74,390) |  |  | (85,960) |  |  |
Loans receivable, net | 6,886,642 |  |  | 7,029,078 |  |  |
Loans that were moved during period | 102,300 |  |  |  |  |  |
Commercial real estate |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |
Allowance for loan losses | (78,395) |  | $ (84,888) | (91,265) | $ (98,849) | $ (99,698) | $ (98,189)
Commercial | Commercial and industrial |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |
Loans receivable | 1,942,964 |  |  | 1,845,960 |  |  |
Commercial | Commercial real estate |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |
Loans receivable | 1,173,332 |  |  | 1,259,651 |  |  |
Commercial | Multifamily |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |
Loans receivable | 1,654,272 |  |  | 1,689,943 |  |  |
Commercial | SBA |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |
Loans receivable | 56,600 |  |  | 68,137 |  |  |
Commercial | Construction |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |
Loans receivable | 262,715 |  |  | 243,553 |  |  |
Commercial | Warehouse Lending Balances |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |
Loans receivable | 647,700 |  |  | 602,500 |  |  |
Consumer | Single family residential mortgage |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |
Loans receivable | 1,782,655 | $ 1,800,000 |  | 1,920,806 |  |  |
Consumer | Other consumer |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |
Loans receivable | $ 88,494 |  |  | $ 86,988 |  |  |

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- Definition Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479344/326-20-45-1 + Details
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