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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, 2019 | Dec. 31, 2018
--- | --- | ---
Financing Receivable, Past Due [Line Items] |  |
Non-accrual | $ 26,096 | $ 16,520
Restructured, not on non-accrual | 79 | 225
Loans over 90 days past due and still accruing interest | 250 |
Total Recorded Investment | 26,425 | 16,745
Commercial and industrial |  |
Financing Receivable, Past Due [Line Items] |  |
Non-accrual | 22,328 | 12,805
Restructured, not on non-accrual | 0 | 145
Loans over 90 days past due and still accruing interest | 250 |
Total Recorded Investment | 22,578 | 12,950
CRE - investor owned |  |
Financing Receivable, Past Due [Line Items] |  |
Non-accrual | 2,303 | 398
Restructured, not on non-accrual | 0 | 0
Loans over 90 days past due and still accruing interest | 0 |
Total Recorded Investment | 2,303 | 398
CRE - owner occupied |  |
Financing Receivable, Past Due [Line Items] |  |
Non-accrual | 213 | 808
Restructured, not on non-accrual | 0 | 0
Loans over 90 days past due and still accruing interest | 0 |
Total Recorded Investment | 213 | 808
Residential real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Non-accrual | 1,251 | 2,197
Restructured, not on non-accrual | 79 | 80
Loans over 90 days past due and still accruing interest | 0 |
Total Recorded Investment | 1,330 | 2,277
Consumer and other |  |
Financing Receivable, Past Due [Line Items] |  |
Non-accrual | 1 | 312
Restructured, not on non-accrual | 0 | 0
Loans over 90 days past due and still accruing interest | 0 |
Total Recorded Investment | $ 1 | $ 312

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