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Loans - Schedule of Loans Outstanding by Portfolio Class (Details) - USD ($) $ in Thousands | Sep. 30, 2024 | Jun. 30, 2024 | Dec. 31, 2023 | Sep. 30, 2023 | Jun. 30, 2023 | Dec. 31, 2022
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Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total past due | $ 4,803,996 |  | $ 4,417,630 |  |  |
Allowance for credit losses | (52,881) | $ (52,215) | (50,029) | $ (49,699) | $ (49,976) | $ (50,464)
Net loans | 4,751,115 |  | 4,367,601 |  |  |
Commercial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total past due | 2,914,059 |  | 2,674,960 |  |  |
Allowance for credit losses | (32,854) | (31,941) | (29,736) | (29,472) | (30,354) | (32,445)
Commercial | Owner occupied real estate |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total past due | 634,470 |  | 640,731 |  |  |
Commercial | Non–owner occupied real estate |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total past due | 1,424,248 |  | 1,273,838 |  |  |
Commercial | Residential spec homes |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total past due | 16,447 |  | 13,489 |  |  |
Commercial | Development & spec land |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total past due | 30,294 |  | 34,039 |  |  |
Commercial | Commercial and industrial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total past due | 808,600 |  | 712,863 |  |  |
Real estate |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total past due | 881,793 |  | 726,214 |  |  |
Allowance for credit losses | (2,675) | (2,588) | (2,503) | (2,794) | (3,648) | (5,577)
Real estate | Residential mortgage |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total past due | 783,957 |  | 654,295 |  |  |
Real estate | Residential construction |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total past due | 17,399 |  | 26,841 |  |  |
Real estate | Mortgage warehouse |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total past due | 80,437 |  | 45,078 |  |  |
Consumer |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total past due | 1,008,144 |  | 1,016,456 |  |  |
Allowance for credit losses | (16,490) | $ (16,950) | (17,309) | $ (16,719) | $ (15,081) | $ (11,422)
Consumer | Installment |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total past due | 101,554 |  | 52,366 |  |  |
Consumer | Indirect auto |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total past due | 341,979 |  | 399,946 |  |  |
Consumer | Home equity |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total past due | $ 564,611 |  | $ 564,144 |  |  |

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