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Loans and Allowance for Credit Losses - Schedule of Past Due Loans (Details) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023
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Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total loans, net of unearned income | $ 36,285,887 | $ 32,991,927
Portfolio Segment After Reclassifications |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total loans, net of unearned income | 36,285,887 | 32,991,927
Commercial |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total loans, net of unearned income | 10,288,560 | 9,512,230
Commercial | Portfolio Segment After Reclassifications |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total loans, net of unearned income | 10,056,259 | 9,279,466
Commercial real estate |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total loans, net of unearned income | 16,307,486 | 14,140,629
Commercial real estate | Portfolio Segment After Reclassifications |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total loans, net of unearned income | 16,133,048 | 13,971,571
BBCC | Portfolio Segment After Reclassifications |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total loans, net of unearned income | 406,739 | 401,822
Residential real estate |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total loans, net of unearned income | 6,797,586 | 6,699,443
Residential real estate | Portfolio Segment After Reclassifications |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total loans, net of unearned income | 6,797,586 | 6,699,443
Indirect |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total loans, net of unearned income | 1,096,778 | 1,050,982
Indirect | Portfolio Segment After Reclassifications |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total loans, net of unearned income | 1,096,778 | 1,050,982
Direct |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total loans, net of unearned income | 514,144 | 523,172
Direct | Portfolio Segment After Reclassifications |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total loans, net of unearned income | 514,144 | 523,172
Home equity |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total loans, net of unearned income | 1,281,333 | 1,065,471
Home equity | Portfolio Segment After Reclassifications |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total loans, net of unearned income | 1,281,333 | 1,065,471
Total Past Due | Portfolio Segment After Reclassifications |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total loans, net of unearned income | 283,006 | 133,465
Total Past Due | Commercial | Portfolio Segment After Reclassifications |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total loans, net of unearned income | 65,248 | 22,321
Total Past Due | Commercial real estate | Portfolio Segment After Reclassifications |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total loans, net of unearned income | 92,113 | 44,995
Total Past Due | BBCC | Portfolio Segment After Reclassifications |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total loans, net of unearned income | 3,518 | 2,479
Total Past Due | Residential real estate | Portfolio Segment After Reclassifications |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total loans, net of unearned income | 88,114 | 27,974
Total Past Due | Indirect | Portfolio Segment After Reclassifications |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total loans, net of unearned income | 13,838 | 10,221
Total Past Due | Direct | Portfolio Segment After Reclassifications |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total loans, net of unearned income | 4,444 | 8,678
Total Past Due | Home equity | Portfolio Segment After Reclassifications |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total loans, net of unearned income | 15,731 | 16,797
30-59 Days Past Due | Portfolio Segment After Reclassifications |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total loans, net of unearned income | 92,237 | 59,187
30-59 Days Past Due | Commercial | Portfolio Segment After Reclassifications |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total loans, net of unearned income | 5,970 | 16,128
30-59 Days Past Due | Commercial real estate | Portfolio Segment After Reclassifications |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total loans, net of unearned income | 19,240 | 9,081
30-59 Days Past Due | BBCC | Portfolio Segment After Reclassifications |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total loans, net of unearned income | 1,227 | 1,368
30-59 Days Past Due | Residential real estate | Portfolio Segment After Reclassifications |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total loans, net of unearned income | 49,331 | 12,358
30-59 Days Past Due | Indirect | Portfolio Segment After Reclassifications |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total loans, net of unearned income | 9,700 | 7,025
30-59 Days Past Due | Direct | Portfolio Segment After Reclassifications |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total loans, net of unearned income | 2,004 | 5,436
30-59 Days Past Due | Home equity | Portfolio Segment After Reclassifications |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total loans, net of unearned income | 4,765 | 7,791
60-89 Days Past Due | Portfolio Segment After Reclassifications |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total loans, net of unearned income | 44,739 | 12,743
60-89 Days Past Due | Commercial | Portfolio Segment After Reclassifications |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total loans, net of unearned income | 12,021 | 1,332
60-89 Days Past Due | Commercial real estate | Portfolio Segment After Reclassifications |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total loans, net of unearned income | 12,728 | 5,254
60-89 Days Past Due | BBCC | Portfolio Segment After Reclassifications |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total loans, net of unearned income | 861 | 134
60-89 Days Past Due | Residential real estate | Portfolio Segment After Reclassifications |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total loans, net of unearned income | 12,085 | 367
60-89 Days Past Due | Indirect | Portfolio Segment After Reclassifications |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total loans, net of unearned income | 2,675 | 1,854
60-89 Days Past Due | Direct | Portfolio Segment After Reclassifications |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total loans, net of unearned income | 970 | 1,455
60-89 Days Past Due | Home equity | Portfolio Segment After Reclassifications |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total loans, net of unearned income | 3,399 | 2,347
Past Due 90 Days or More | Portfolio Segment After Reclassifications |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total loans, net of unearned income | 146,030 | 61,535
Past Due 90 Days or More | Commercial | Portfolio Segment After Reclassifications |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total loans, net of unearned income | 47,257 | 4,861
Past Due 90 Days or More | Commercial real estate | Portfolio Segment After Reclassifications |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total loans, net of unearned income | 60,145 | 30,660
Past Due 90 Days or More | BBCC | Portfolio Segment After Reclassifications |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total loans, net of unearned income | 1,430 | 977
Past Due 90 Days or More | Residential real estate | Portfolio Segment After Reclassifications |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total loans, net of unearned income | 26,698 | 15,249
Past Due 90 Days or More | Indirect | Portfolio Segment After Reclassifications |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total loans, net of unearned income | 1,463 | 1,342
Past Due 90 Days or More | Direct | Portfolio Segment After Reclassifications |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total loans, net of unearned income | 1,470 | 1,787
Past Due 90 Days or More | Home equity | Portfolio Segment After Reclassifications |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total loans, net of unearned income | 7,567 | 6,659
Current | Portfolio Segment After Reclassifications |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total loans, net of unearned income | 36,002,881 | 32,858,462
Current | Commercial | Portfolio Segment After Reclassifications |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total loans, net of unearned income | 9,991,011 | 9,257,145
Current | Commercial real estate | Portfolio Segment After Reclassifications |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total loans, net of unearned income | 16,040,935 | 13,926,576
Current | BBCC | Portfolio Segment After Reclassifications |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total loans, net of unearned income | 403,221 | 399,343
Current | Residential real estate | Portfolio Segment After Reclassifications |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total loans, net of unearned income | 6,709,472 | 6,671,469
Current | Indirect | Portfolio Segment After Reclassifications |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total loans, net of unearned income | 1,082,940 | 1,040,761
Current | Direct | Portfolio Segment After Reclassifications |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total loans, net of unearned income | 509,700 | 514,494
Current | Home equity | Portfolio Segment After Reclassifications |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total loans, net of unearned income | $ 1,265,602 | $ 1,048,674

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