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Other Non-Interest Income and Expense (Other Non-Interest Income and Expense) (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Other Income and Expenses [Abstract] |  |  |
Other | $ 52,060 | $ 54,941 | $ 45,217
Total other non-interest income | 52,060 | 54,941 | 45,217
Professional services | 56,385 | 53,932 | 40,908
Advertising, promotions and public relations | 51,403 | 48,608 | 39,994
Other | 136,623 | 126,827 | 113,799
Total other non-interest expense | $ 244,411 | $ 229,367 | $ 194,701

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