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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, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Service Condition Vesting RSUs |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Total compensation costs for RSUs recognized in income | $ 2,807 | $ 2,883 | $ 1,728
Excess tax benefit recognized in income Service condition vesting RSUs | 924 | 1,079 | 626
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 | 1,319 | 986 | 910
Excess tax benefit recognized in income Service condition vesting RSUs | $ 594 | $ 355 | $ 226

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