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Loans - Schedule of Loans Outstanding by Portfolio Class (Details) - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023 | Mar. 31, 2023 | Dec. 31, 2022
--- | --- | --- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Total past due | $ 4,618,175 | $ 4,417,630 |  |
Allowance for credit losses | (50,387) | (50,029) | $ (49,526) | $ (50,464)
Net loans | 4,567,788 | 4,367,601 |  |
Commercial |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Total past due | 2,749,766 | 2,674,960 |  |
Allowance for credit losses | (30,514) | (29,736) | (31,156) | (32,445)
Commercial | Owner occupied real estate |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Total past due | 653,144 | 640,731 |  |
Commercial | Non–owner occupied real estate |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Total past due | 1,287,474 | 1,273,838 |  |
Commercial | Residential spec homes |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Total past due | 10,892 | 13,489 |  |
Commercial | Development & spec land |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Total past due | 33,213 | 34,039 |  |
Commercial | Commercial and industrial |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Total past due | 765,043 | 712,863 |  |
Real estate |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Total past due | 838,619 | 726,214 |  |
Allowance for credit losses | (2,655) | (2,503) | (4,447) | (5,577)
Real estate | Residential mortgage |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Total past due | 757,760 | 654,295 |  |
Real estate | Residential construction |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Total past due | 24,311 | 26,841 |  |
Real estate | Mortgage warehouse |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Total past due | 56,548 | 45,078 |  |
Consumer |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Total past due | 1,029,790 | 1,016,456 |  |
Allowance for credit losses | (16,559) | (17,309) | $ (13,125) | $ (11,422)
Consumer | Installment |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Total past due | 109,370 | 52,366 |  |
Consumer | Indirect auto |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Total past due | 360,835 | 399,946 |  |
Consumer | Home equity |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Total past due | $ 559,585 | $ 564,144 |  |

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