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Loans and Allowance for Credit Losses - Schedule of Types of Collateral (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total loans, net of unearned income | $ 32,991,927 | $ 31,123,641
Real Estate |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total loans, net of unearned income | 226,996 | 168,623
Blanket Lien |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total loans, net of unearned income | 25,524 | 43,245
Investment Securities/Cash |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total loans, net of unearned income | 3,747 | 4,408
Auto |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total loans, net of unearned income | 5,243 | 5,085
Other |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total loans, net of unearned income | 6,464 | 7,414
Commercial |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total loans, net of unearned income | 9,512,230 | 9,508,904
Commercial | Real Estate |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total loans, net of unearned income | 14,303 | 8,962
Commercial | Blanket Lien |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total loans, net of unearned income | 24,729 | 42,754
Commercial | Investment Securities/Cash |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total loans, net of unearned income | 2,577 | 2,690
Commercial | Auto |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total loans, net of unearned income | 280 | 1,611
Commercial | Other |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total loans, net of unearned income | 328 | 980
Commercial real estate |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total loans, net of unearned income | 14,140,629 | 12,457,070
Commercial real estate | Real Estate |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total loans, net of unearned income | 146,425 | 108,871
Commercial real estate | Blanket Lien |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total loans, net of unearned income | 0 | 0
Commercial real estate | Investment Securities/Cash |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total loans, net of unearned income | 1,167 | 1,718
Commercial real estate | Auto |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total loans, net of unearned income | 0 | 0
Commercial real estate | Other |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total loans, net of unearned income | 6,107 | 6,411
BBCC | Real Estate |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total loans, net of unearned income | 3,522 | 1,939
BBCC | Blanket Lien |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total loans, net of unearned income | 794 | 478
BBCC | Investment Securities/Cash |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total loans, net of unearned income | 0 | 0
BBCC | Auto |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total loans, net of unearned income | 390 | 12
BBCC | Other |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total loans, net of unearned income | 0 | 0
Residential real estate |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total loans, net of unearned income | 6,699,443 | 6,460,441
Residential real estate | Real Estate |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total loans, net of unearned income | 41,771 | 34,660
Residential real estate | Blanket Lien |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total loans, net of unearned income | 0 | 0
Residential real estate | Investment Securities/Cash |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total loans, net of unearned income | 0 | 0
Residential real estate | Auto |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total loans, net of unearned income | 0 | 0
Residential real estate | Other |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total loans, net of unearned income | 0 | 0
Indirect |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total loans, net of unearned income | 1,050,982 | 1,034,257
Indirect | Real Estate |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total loans, net of unearned income | 0 | 0
Indirect | Blanket Lien |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total loans, net of unearned income | 0 | 0
Indirect | Investment Securities/Cash |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total loans, net of unearned income | 0 | 0
Indirect | Auto |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total loans, net of unearned income | 4,207 | 3,230
Indirect | Other |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total loans, net of unearned income | 0 | 0
Direct |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total loans, net of unearned income | 523,172 | 629,186
Direct | Real Estate |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total loans, net of unearned income | 4,727 | 2,991
Direct | Blanket Lien |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total loans, net of unearned income | 1 | 13
Direct | Investment Securities/Cash |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total loans, net of unearned income | 3 | 0
Direct | Auto |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total loans, net of unearned income | 366 | 232
Direct | Other |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total loans, net of unearned income | 29 | 23
Home equity |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total loans, net of unearned income | 1,065,471 | 1,033,783
Home equity | Real Estate |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total loans, net of unearned income | 16,248 | 11,200
Home equity | Blanket Lien |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total loans, net of unearned income | 0 | 0
Home equity | Investment Securities/Cash |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total loans, net of unearned income | 0 | 0
Home equity | Auto |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total loans, net of unearned income | 0 | 0
Home equity | Other |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Total loans, net of unearned income | $ 0 | $ 0

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