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Loans - Modification to Borrowers Experiencing Financial Difficulty (Details) - USD ($) $ in Thousands | 6 Months Ended |
--- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Dec. 31, 2024
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Loans, net of unearned discounts | $ 21,254,495 |  | $ 20,754,813
Payment Deferral |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Loans, net of unearned discounts | 4,977 |  |
Combination: Payment Delay and Term Extention |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Loans, net of unearned discounts | 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] | Payment Deferral |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Loans, net of unearned discounts | $ 3,101 | $ 0 |
Financing Receivable, Modified in Period, to Total Financing Receivables, Percentage | 0.10% | 0.00% |
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 |
Financing Receivable, Modified in Period, to Total Financing Receivables, Percentage | 0.00% | 0.40% |
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] | Payment Deferral |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Loans, net of unearned discounts | $ 1,876 |  |
Financing Receivable, Modified in Period, to Total Financing Receivables, Percentage | 0.00% |  |
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 |  |
Financing Receivable, Modified in Period, to Total Financing Receivables, Percentage | 0.00% |  |

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- Definition Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479344/326-20-45-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-3B Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-5 + Details
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- Definition Percentage of financing receivable modified during period for debtor experiencing financial difficulty to total financing receivables. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 12A -Publisher FASB -URI https://asc.fasb.org/1943274/2147481933/310-10-55-12A Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 42 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481962/310-10-50-42 + Details
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