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Stock Options and Other Equity-Based Incentive Instruments - Summary of Compensation Costs and Excess Tax Benefits for RSUs (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Service Condition Vesting RSUs |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Total compensation costs for RSUs recognized in income | $ 3,224 | $ 2,807 | $ 2,883
Excess tax benefit recognized in income Service condition vesting RSUs | 964 | 924 | 1,079
Market Plus Service Condition Vesting RSUs |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Total compensation costs for RSUs recognized in income | 1,442 | 1,319 | 986
Excess tax benefit recognized in income Service condition vesting RSUs | $ 427 | $ 594 | $ 355

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