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Commitments and Contingent Liabilities - Commitments to Extend Credit, Guarantees and Various Letters of Credit Outstanding (Detail) - USD ($) $ in Thousands | Sep. 30, 2025 | Dec. 31, 2024
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Commitments and Contingencies Disclosure [Abstract] |  |
Lines of credit | $ 5,326,918 | $ 3,960,185
Loans approved but not closed | 496,377 | 365,529
Overdraft limits | 555,156 | 387,591
Letters of credit | 60,924 | 47,879
Contingent obligations and other guarantees | $ 39,773 | $ 16,574

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- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 605 -Name Accounting Standards Codification -Section 55 -Paragraph 15 -Publisher FASB -URI https://asc.fasb.org/1943274/2147477548/944-605-55-15 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 605 -Name Accounting Standards Codification -Section 55 -Paragraph 12 -Publisher FASB -URI https://asc.fasb.org/1943274/2147477548/944-605-55-12 + Details
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- Definition Contingent obligations to purchase loans funded by other entities. + References No definition available. + Details
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- Definition Unused portions of various lines of credit products. + References No definition available. + Details
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- Definition Credit offerings by the bank to customer in which the customer has either not completed the closing or accepted the offer. + References No definition available. + Details
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- Definition Unused portion of available funds under overdraft programs on deposit programs. + References No definition available. + Details
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