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Loans - Financing Receivables, Modified Loans Past Due in Excess of 90 Days or on Non-Accrual Status at Period-End (Details) - USD ($) $ in Thousands | Jun. 30, 2024 | Dec. 31, 2023 | Jun. 30, 2023
--- | --- | --- | ---
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Loans, net of unearned discounts | $ 19,995,756 | $ 18,824,251 |
Combination: Payment Delay and Term Extention |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Loans, net of unearned discounts |  |  | $ 36,486
Combination: Payment Delay and Term Extention | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Loans, net of unearned discounts | 0 |  | 36,486
Commercial Portfolio Segment [Member] |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Loans, net of unearned discounts | 6,210,179 | 5,967,182 |
Commercial Portfolio Segment [Member] | Combination: Payment Delay and Term Extention |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Loans, net of unearned discounts | 27,731 |  | 16,020
Commercial Portfolio Segment [Member] | Combination: Payment Delay and Term Extention | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Loans, net of unearned discounts | 0 |  | 16,020
Commercial Real Estate Buildings Land And Other Loans [Member] |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Loans, net of unearned discounts | 7,497,667 | $ 7,301,920 |
Commercial Real Estate Buildings Land And Other Loans [Member] | Combination: Payment Delay and Term Extention |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Loans, net of unearned discounts |  |  | 20,466
Commercial Real Estate Buildings Land And Other Loans [Member] | Combination: Payment Delay and Term Extention | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Loans, net of unearned discounts | $ 0 |  | $ 20,466

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