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Portfolio Loans - Summary of Recorded Investment in Impaired Portfolio Loans by Category (Details) - Non-Covered Loans - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Financing Receivable, Past Due [Line Items] |  |
Non-accrual | $ 23,449 | $ 34,818
Restructured, accruing | 2,859 | 3,559
Loans over 90 days past due and still accruing interest | 1,716 | 130
Total Recorded Investment | 28,024 | 38,507
Recorded Investment With No Allowance | 9,751 | 18,246
Commercial and industrial |  |
Financing Receivable, Past Due [Line Items] |  |
Non-accrual | 17,052 | 18,158
Restructured, accruing | 2,783 | 3,482
Loans over 90 days past due and still accruing interest | 1,703 | 130
Total Recorded Investment | 21,538 | 21,770
Recorded Investment With No Allowance | 5,685 | 8,316
Commercial - investor owned |  |
Financing Receivable, Past Due [Line Items] |  |
Non-accrual | 1,575 | 9,579
Restructured, accruing | 0 | 0
Loans over 90 days past due and still accruing interest | 0 | 0
Total Recorded Investment | 1,575 | 9,579
Recorded Investment With No Allowance | 168 | 716
CRE - owner occupied |  |
Financing Receivable, Past Due [Line Items] |  |
Non-accrual | 2,839 | 2,940
Restructured, accruing | 0 | 0
Loans over 90 days past due and still accruing interest | 0 | 0
Total Recorded Investment | 2,839 | 2,940
Recorded Investment With No Allowance | 2,550 | 6,024
Residential real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Non-accrual | 1,971 | 4,112
Restructured, accruing | 76 | 77
Loans over 90 days past due and still accruing interest | 1 | 0
Total Recorded Investment | 2,048 | 4,189
Recorded Investment With No Allowance | 1,348 | 0
Other |  |
Financing Receivable, Past Due [Line Items] |  |
Non-accrual | 12 | 29
Restructured, accruing | 0 | 0
Loans over 90 days past due and still accruing interest | 12 | 0
Total Recorded Investment | 24 | 29
Recorded Investment With No Allowance | $ 0 | $ 3,190

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