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Employee Stock-Based Compensation - Additional Information (Detail) - 2014 Incentive Plan | 9 Months Ended
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Sep. 30, 2021 $ / shares shares
Time Based Restricted Stock Unit Grants |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |
RSUs Granted | 577,500
Weighted average grant date fair value, granted | $ / shares | $ 47.56
Time Based Restricted Stock Unit Grants | Share Based Compensation Award Vesting Over Three Years |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |
RSUs Granted | 536,000
Stock award granted vesting period | 3 years
Time Based Restricted Stock Unit Grants | Share Based Compensation Award Tranche One |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |
Stock award vesting percentage | 33.00%
Time Based Restricted Stock Unit Grants | Share Based Compensation Award Tranche Two |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |
Stock award vesting percentage | 33.00%
Time Based Restricted Stock Unit Grants | Share Based Compensation Award Tranche Three |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |
Stock award vesting percentage | 33.00%
Time Based Restricted Stock Unit Grants | Share Based Compensation Award Vesting Over Two Years |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |
Stock award granted vesting period | 2 years
Time Based Restricted Stock Unit Grants | Share Based Compensation Award Vesting On Second Anniversary |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |
RSUs Granted | 37,000
Stock award vesting percentage | 50.00%
Time Based Restricted Stock Unit Grants | Share Based Compensation Award Vesting On Second and Third Anniversary |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |
RSUs Granted | 4,500
Stock award vesting percentage | 25.00%
Time Based Restricted Stock Unit Grants | Share Based Compensation Award Vesting On Fourth Anniversary |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |
Stock award vesting percentage | 50.00%
Performance and Service Condition Based Restricted Stock Unit Grants |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |
RSUs Granted | 37,000
Stock award granted vesting period | 2 years
Weighted average grant date fair value, granted | $ / shares | $ 40.81
Performance and Service Condition Based Restricted Stock Unit Grants | Minimum |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |
Percentage of number of shares of common stock earned | 0.00%
Performance and Service Condition Based Restricted Stock Unit Grants | Maximum |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |
Percentage of number of shares of common stock earned | 120.00%
Performance Market and Service Condition Based Restricted Stock Unit Grants |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |
RSUs Granted | 188,000
Stock award granted vesting period | 3 years
Weighted average grant date fair value, granted | $ / shares | $ 47.85
Increased percentage of number of shares of additional common stock earned | 10.00%
Decreased percentage of number of shares of additional common stock earned | 10.00%
Performance Market and Service Condition Based Restricted Stock Unit Grants | Minimum |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |
Percentage of number of shares of common stock earned | 0.00%
Performance Market and Service Condition Based Restricted Stock Unit Grants | Maximum |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |
Percentage of number of shares of common stock earned | 200.00%

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- Definition The percentage of restricted stock units granted which will convert to common shares upon satisfaction of the award's vesting conditions. + References No definition available. + Details
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- Definition Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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