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LOANS AND ALLOWANCE FOR CREDIT LOSSES - Schedule of Participating Mortgage Loans (Details) - USD ($) $ in Thousands | Jun. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Unpaid principal balance | $ 7,436,887 | $ 7,245,952
Unamortized net premiums | 25,960 | 18,005
Unamortized net deferred (fees) costs | (902) | 819
Unamortized SBA PPP fees | (21) | (831)
Fair value adjustment | (10,660) | (12,465)
Loans receivable, net | 7,451,264 | 7,251,480
PMB Acquisition |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Fair value adjustment | (9,000) | (10,600)
PMB Acquisition | PCD loans |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Fair value adjustment | $ (4,300) | $ (3,900)

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