v3.19.3.a.u2

Stockholders' Equity - Restricted Stock Units - Additional Information (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |  |
Expected weighted average period to recognize unrecognized stock compensation expense | 1 year 9 months 10 days |
Restricted Stock Units |  |
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |  |
Grant-date fair value of restricted stock units granted | $ 195.2 |
Unrecognized stock compensation expense | $ 267.7 |
Expected weighted average period to recognize unrecognized stock compensation expense | 2 years 9 months 7 days |
Intrinsic value of restricted stock units vested | $ 100.1 | $ 12.7

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- Definition Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents 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 (i) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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