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Goodwill and Other Intangible Assets - Changes in Carrying Amount of Goodwill (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023
Impairment Effects on Earnings Per Share [Line Items] |  |
Balance, beginning of period | $ 765,822 | $ 765,822
Additions due to acquisitions | 0 | 0
Balance, end of period | $ 765,822 | $ 765,822

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