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Stock-Based Compensation - Summary of Activity for Outstanding and Exercisable SARs (Detail) - Stock Appreciation Rights (SARs) [Member] | 12 Months Ended
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Dec. 31, 2018 USD ($) $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
SARs outstanding and exercisable | shares | 177,538
SARs outstanding and exercisable | $ / shares | $ 28.52
SARs outstanding and exercisable | 2 years 4 months 24 days
SARs outstanding and exercisable | $ | $ 6,408

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- Definition Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Outstanding and Exercisable. + 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 Base Value. + 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 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, Aggregate Intrinsic Value, Outstanding and Exercisable + 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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