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STOCKHOLDERS' EQUITY - Summary of Restricted Stock, Restricted Stock Unit and Performance-based Stock Unit Activity (Detail) $ / shares in Units, shares in Thousands, $ in Thousands | 9 Months Ended
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Sep. 30, 2021 USD ($) $ / shares shares
Restricted Stock, Restricted Stock Units And Performance Stock Units |
Restricted Stock, Restricted Stock Units, and Performance Stock Units |
Outstanding, beginning of period (in shares) | 307
Granted (in shares) | 108
Forfeited (in shares) | (8)
Outstanding, end of period (in shares) | 325
Weighted Average Grant Date Fair Value |
Outstanding at beginning of period (in dollars per share) | $ / shares | $ 41.55
Granted (in dollars per share) | $ / shares | 67.65
Forfeited (in dollars per share) | $ / shares | 51.22
Outstanding at end of period (in dollars per share) | $ / shares | $ 51.56
Weighted Average Remaining Contractual Term (years) and Aggregate Intrinsic Value |
Contractual term (in years) | 1 year 9 months 18 days
Aggregate intrinsic value | $ | $ 24,647
Restricted Stock, Restricted Stock Units And Performance Stock Units | Class A Common Stock |
Restricted Stock, Restricted Stock Units, and Performance Stock Units |
Vested (in shares) | (82)
Weighted Average Grant Date Fair Value |
Class A Common Stock Vested (in dollars per share) | $ / shares | $ 35.44
Performance Stock Unit |
Weighted Average Remaining Contractual Term (years) and Aggregate Intrinsic Value |
Percentage of attainment level (as a percent) | 100.00%
Performance Stock Unit | Class A Common Stock |
Weighted Average Remaining Contractual Term (years) and Aggregate Intrinsic Value |
Number of additional shares (in shares) | 265
Unvested | Restricted Stock, Restricted Stock Units And Performance Stock Units |
Restricted Stock, Restricted Stock Units, and Performance Stock Units |
Outstanding, end of period (in shares) | 590
Weighted Average Grant Date Fair Value |
Outstanding at end of period (in dollars per share) | $ / shares | $ 51.26
Weighted Average Remaining Contractual Term (years) and Aggregate Intrinsic Value |
Contractual term (in years) | 1 year 6 months
Aggregate intrinsic value | $ | $ 44,796

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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 Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event. + 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)(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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- 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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- Definition The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date. + 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)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Weighted average remaining contractual term for equity-based awards excluding options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + 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 (e)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement. + 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)(2) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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