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Stock-Based Compensation - Summary of Activity for Outstanding and Exercisable SARs (Detail) - Stock Appreciation Rights (SARs) [Member] $ / shares in Units, $ in Millions | 12 Months Ended
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Dec. 31, 2020 USD ($) $ / shares shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |
Number of Shares | shares | 51,589
Weighted Average Base Value | $ / shares | $ 30.64
Weighted Average Remaining Contractual Life (years) | 1 year
Aggregate Intrinsic Value | $ | $ 6.2

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- Definition Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Outstanding and Exercisable Weighted Average Remaining Contractual Terms Expected To Vest. + References No definition available. + Details
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- Definition Share based compensation arrangement by share based payment award equity instruments other than options outstanding and exercisable weighted average number of shares. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Details
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