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Loans - Summary of Performing and Non Performing Loans (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Investment on loans by payment activity | $ 92,931 | $ 78,789
Loans, before unearned loan fees | 10,616,820 | 9,737,138
Non-Covered Loans |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Investment on loans by payment activity | 10,616,820 | 9,737,138
Loans, before unearned loan fees | 10,622,397 | 9,744,427
Non-Covered Loans | Commercial - investor owned |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Investment on loans by payment activity | 2,425,821 | 2,357,820
Loans, before unearned loan fees | 2,425,821 | 2,357,820
Non-Covered Loans | Commercial - investor owned | Pass (1-6) |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans, before unearned loan fees | 18,063 | 18,595
Non-Covered Loans | Commercial - investor owned | Special Mention (7) |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans, before unearned loan fees | 0 | 0
Non-Covered Loans | Commercial - investor owned | Classified (8-9) |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans, before unearned loan fees | 18,063 | 18,595
Non-Covered Loans | CRE - owner occupied |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Investment on loans by payment activity | 2,361,370 | 2,270,551
Loans, before unearned loan fees | 2,361,370 | 2,270,551
Non-Covered Loans | CRE - owner occupied | Pass (1-6) |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans, before unearned loan fees | 28,629 | 29,397
Non-Covered Loans | CRE - owner occupied | Special Mention (7) |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans, before unearned loan fees | 0 | 0
Non-Covered Loans | CRE - owner occupied | Classified (8-9) |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans, before unearned loan fees | 28,629 | 29,397
Non-Covered Loans | Construction and land development |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Investment on loans by payment activity | 723,138 | 611,565
Loans, before unearned loan fees | 723,138 | 611,565
Performing |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Investment on loans by payment activity | 92,749 | 78,647
Non Performing |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Investment on loans by payment activity | 182 | 142
Commercial and industrial |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Investment on loans by payment activity | 41,826 | 23,310
Loans, before unearned loan fees | 4,406,709 | 3,836,572
Commercial and industrial | Pass (1-6) |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans, before unearned loan fees | 4,231,569 | 3,645,384
Commercial and industrial | Special Mention (7) |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans, before unearned loan fees | 86,295 | 147,206
Commercial and industrial | Classified (8-9) |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans, before unearned loan fees | 88,845 | 43,982
Commercial and industrial | Performing |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Investment on loans by payment activity | 41,685 | 23,240
Commercial and industrial | Non Performing |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Investment on loans by payment activity | 141 | 70
Residential real estate |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Investment on loans by payment activity | 719 | 743
Loans, before unearned loan fees | 375,401 | 394,794
Residential real estate | Pass (1-6) |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans, before unearned loan fees | 363,093 | 390,903
Residential real estate | Special Mention (7) |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans, before unearned loan fees | 1,948 | 1,543
Residential real estate | Classified (8-9) |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans, before unearned loan fees | 10,360 | 2,348
Residential real estate | Performing |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Investment on loans by payment activity | 719 | 743
Residential real estate | Non Performing |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Investment on loans by payment activity | 0 | 0
Other |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Investment on loans by payment activity | 3,694 | 6,744
Loans, before unearned loan fees | 270,320 | 235,039
Other | Pass (1-6) |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans, before unearned loan fees | 270,227 | 235,014
Other | Special Mention (7) |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans, before unearned loan fees | 84 | 0
Other | Classified (8-9) |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans, before unearned loan fees | 9 | 25
Other | Performing |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Investment on loans by payment activity | 3,653 | 6,672
Other | Non Performing |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Investment on loans by payment activity | $ 41 | $ 72

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