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Summary of Restricted Stock Unit Activity (Detail) - Restricted Stock Units (RSUs) $ in Thousands | 12 Months Ended
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Dec. 31, 2020 USD ($) shares
Options Outstanding |
Unvested at December 31, 2019 | 734,984
Awarded | 207,788
Vested | (244,648)
Forfeited/expired/cancelled | (32,584)
Unvested at December 31, 2020 | 665,540
Vested and expected to vest at December 31, 2020 | 650,047
Weighted-Average Remaining Contractual Term (in years) |
Unvested at December 31, 2020 | 3 years 3 months 25 days
Vested and expected to vest at December 31, 2020 | 3 years 3 days
Aggregate Intrinsic Value |
Unvested at December 31, 2020 | $ | $ 127,904
Vested and expected to vest at December 31, 2020 | $ | $ 124,568

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- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period. + 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)(1)(iv)(3) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition The number of grants made 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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