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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, 2025 | Dec. 31, 2024 | Jun. 30, 2024
--- | --- | --- | ---
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Loans, net of unearned discounts | $ 21,254,495 | $ 20,754,813 |
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Loans, net of unearned discounts | 86,779 |  |
Payment Deferral |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Loans, net of unearned discounts | 4,977 |  |
Payment Deferral | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Loans, net of unearned discounts | 6,764 |  | $ 0
Combination: Payment Delay and Term Extention |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Loans, net of unearned discounts | 0 |  |
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 | 9,911 |  | 0
Commercial Portfolio Segment [Member] |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Loans, net of unearned discounts | 6,069,215 | 6,109,532 |
Commercial Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Loans, net of unearned discounts | 27,532 |  |
Commercial Portfolio Segment [Member] | Payment Deferral |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Loans, net of unearned discounts | 3,101 |  | 0
Commercial Portfolio Segment [Member] | Payment Deferral | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Loans, net of unearned discounts | 4,888 |  | 0
Commercial Portfolio Segment [Member] | Payment Deferral | Charge-offs |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Loans, net of unearned discounts | 1,108 |  | 0
Commercial Portfolio Segment [Member] | Combination: Payment Delay and Term Extention |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Loans, net of unearned discounts | 0 |  | 27,731
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 | 9,911 |  | 0
Commercial Portfolio Segment [Member] | Combination: Payment Delay and Term Extention | Charge-offs |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Loans, net of unearned discounts | 0 |  | 0
Commercial Real Estate Buildings Land And Other Loans [Member] |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Loans, net of unearned discounts | 8,018,049 | $ 7,704,447 |
Commercial Real Estate Buildings Land And Other Loans [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Loans, net of unearned discounts | 44,129 |  |
Commercial Real Estate Buildings Land And Other Loans [Member] | Payment Deferral |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Loans, net of unearned discounts | 1,876 |  |
Commercial Real Estate Buildings Land And Other Loans [Member] | Payment Deferral | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Loans, net of unearned discounts | 1,876 |  | 0
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 | 0 |  |
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 |  | $ 0

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