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Stock-based Compensation - Additional Information (Detail) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |
Shares of common stock authorized for share based payment awards under 2011 Plan | 500,000 |  |
Shares available for grant under the 2011 plan | 611,299 |  |
Compensation expenses | $ 5,347,000 | $ 5,741,000 | $ 13,851,000
Income tax benefit recognized in the income statement for share-based compensation arrangements | $ 1,323,000 | 1,452,000 | 3,537,000
Weighted average period for amortization of unrecognized compensation cost | 1 year 9 months 18 days |  |
Proceeds from stock option exercises | $ 1,112,000 | $ 2,795,000 | $ 782,000
Stock Option [Member] |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |
Period of expiration | 10 years |  |
Weighted-average grant-date fair values of options awarded | $ 32.02 | $ 38.72 | $ 32.21
Intrinsic values of options exercised | $ 1,245,000 | $ 2,364,000 | $ 475,000
Unrecognized compensation cost | 119,000 |  |
Actual tax benefit recognized for the tax deductions from stock based compensation | $ 811,000 | $ 330,000 | $ 36,000
Stock Option Granted Prior to 2017 [Member] |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |
Vesting period | 2 years |  |
Stock Options Granted in 2017 [Member] |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |
Percentage of awards vesting in each year | 33.33% |  |
SARs [Member] |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |
Period of expiration | 10 years |  |
Unrecognized compensation cost | $ 2,438,000 |  |
Weighted average period for amortization of unrecognized compensation cost | 1 year 9 months 18 days |  |
Weighted-average grant-date fair values of awards granted | $ 28.68 | $ 38.98 | $ 34.76
SARs Granted Prior to 2017 [Member] |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |
Vesting period | 2 years |  |
SARs Granted in 2017 [Member] |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |
Percentage of awards vesting in each year | 33.33% |  |
Stock Awards [Member] |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |
Unrecognized compensation cost | $ 4,645,000 |  |
Weighted average period for amortization of unrecognized compensation cost | 2 years 1 month 6 days |  |
Weighted-average grant-date fair values of awards granted | $ 78.97 | $ 104.96 | $ 106.78

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