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Portfolio Loans - Summary of Recorded Investment in Impaired Portfolio Loans by Category (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Commercial Real Estate |  |
Financing Receivable, Past Due [Line Items] |  |
Non-accrual | $ 20,835 |
Residential |  |
Financing Receivable, Past Due [Line Items] |  |
Non-accrual | 4,135 |
Commercial and industrial | Commercial Real Estate | Commercial and industrial |  |
Financing Receivable, Past Due [Line Items] |  |
Non-accrual | 8,316 |
Commercial and industrial | Residential | Commercial and industrial |  |
Financing Receivable, Past Due [Line Items] |  |
Non-accrual | 0 |
Non-Covered Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Non-accrual | 34,818 | $ 26,096
Restructured, accruing | 3,559 | 79
Loans over 90 days past due and still accruing interest | 130 | 250
Total Recorded Investment | 38,507 | 26,425
Non-Covered Loans | Commercial and industrial |  |
Financing Receivable, Past Due [Line Items] |  |
Non-accrual | 18,158 | 22,328
Restructured, accruing | 3,482 | 0
Loans over 90 days past due and still accruing interest | 130 | 250
Total Recorded Investment | 21,770 | 22,578
Recorded Investment With No Allowance | 8,316 | 7,654
Non-Covered Loans | Commercial - investor owned |  |
Financing Receivable, Past Due [Line Items] |  |
Non-accrual | 9,579 | 2,303
Restructured, accruing | 0 | 0
Loans over 90 days past due and still accruing interest | 0 | 0
Total Recorded Investment | 9,579 | 2,303
Recorded Investment With No Allowance | 716 | 811
Non-Covered Loans | CRE - owner occupied |  |
Financing Receivable, Past Due [Line Items] |  |
Non-accrual | 2,940 | 213
Restructured, accruing | 0 | 0
Loans over 90 days past due and still accruing interest | 0 | 0
Total Recorded Investment | 2,940 | 213
Recorded Investment With No Allowance | 6,024 | 213
Non-Covered Loans | Construction and land development |  |
Financing Receivable, Past Due [Line Items] |  |
Recorded Investment With No Allowance |  | 1,120
Non-Covered Loans | Residential real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Non-accrual | 4,112 | 1,251
Restructured, accruing | 77 | 79
Loans over 90 days past due and still accruing interest | 0 | 0
Total Recorded Investment | 4,189 | 1,330
Recorded Investment With No Allowance | 3,190 | 0
Non-Covered Loans | Other |  |
Financing Receivable, Past Due [Line Items] |  |
Non-accrual | 29 | 1
Restructured, accruing | 0 | 0
Loans over 90 days past due and still accruing interest | 0 | 0
Total Recorded Investment | 29 | 1
Recorded Investment With No Allowance | $ 18,246 | $ 9,798

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