v3.20.1

Stockholders' Equity - Restricted Stock Units - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Expected weighted average period to recognize unrecognized stock compensation expense	1 year 8 months 4 days
Restricted Stock Units
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Grant-date fair value of restricted stock units granted	$ 53.6
Unrecognized stock compensation expense	$ 290.8
Expected weighted average period to recognize unrecognized stock compensation expense	2 years 7 months 20 days
Fair value of restricted stock units vested	$ 17.1	$ 7.6

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- Definition

Share based compensation arrangement by share based payment award equity instruments other than options granted in period at fair value.

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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.

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Amount of cost to be recognized for nonvested award under share-based payment arrangement. Excludes share and unit options.

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Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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