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Portfolio Loans - Credit Quality Based on Aging Status (Details) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | $ 9,017,642 | $ 7,224,935
Financing Receivable, after Allowance for Credit Loss | 55,995 | 8,056
Non-Covered Loans |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 9,026,780 | 7,241,074
Non-Covered Loans | Commercial - investor owned |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 2,141,143 | 1,589,419
Non-Covered Loans | Commercial - investor owned | Pass (1-6) |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 1 |
Non-Covered Loans | Commercial - investor owned | Watch (7) |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 0 |
Non-Covered Loans | Commercial - investor owned | Classified (8-9) |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 1 |
Non-Covered Loans | Commercial - owner occupied |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 2,035,785 | 1,498,408
Non-Covered Loans | Commercial - owner occupied | Pass (1-6) |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 23,405 |
Non-Covered Loans | Commercial - owner occupied | Watch (7) |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 0 |
Non-Covered Loans | Commercial - owner occupied | Classified (8-9) |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 23,405 |
Non-Covered Loans | Construction and land development |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 734,073 | 546,686
Non-Covered Loans | Construction and land development | Pass (1-6) |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 2,690 |
Non-Covered Loans | Construction and land development | Watch (7) |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 0 |
Non-Covered Loans | Construction and land development | Classified (8-9) |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 2,690 |
Commercial and industrial |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 3,366,208 | 3,086,494
Financing Receivable, after Allowance for Credit Loss | 26,167 | 2,502
Commercial and industrial | Pass (1-6) |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 3,174,029 | 2,876,755
Commercial and industrial | Watch (7) |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 152,619 | 157,556
Commercial and industrial | Classified (8-9) |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 39,560 | 52,183
Residential |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 453,785 | 318,258
Financing Receivable, after Allowance for Credit Loss | 267 | 921
Residential | Pass (1-6) |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 444,774 | 307,996
Residential | Watch (7) |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 5,838 | 4,491
Residential | Classified (8-9) |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 3,173 | 5,771
Other |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 256,749 | 177,614
Financing Receivable, after Allowance for Credit Loss | 3,465 | 4,633
Other | Pass (1-6) |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 254,266 | 174,888
Other | Watch (7) |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 2,445 | 2,647
Other | Classified (8-9) |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 38 | 79
Performing |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, after Allowance for Credit Loss | 55,982 | 8,035
Performing | Commercial and industrial |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, after Allowance for Credit Loss | 26,166 | 2,502
Performing | Residential |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, after Allowance for Credit Loss | 267 | 921
Performing | Other |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, after Allowance for Credit Loss | 3,453 | 4,612
Non Performing |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, after Allowance for Credit Loss | 13 | 21
Non Performing | Commercial and industrial |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, after Allowance for Credit Loss | 1 | 0
Non Performing | Residential |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, after Allowance for Credit Loss | 0 | 0
Non Performing | Other |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, after Allowance for Credit Loss | $ 12 | $ 21

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