Stock Based Compensation - CEO Performance Award - Additional Information (Details) - Chief Executive Officer - C E O Performance Award $ in Millions	3 Months Ended
Mar. 31, 2021 USD ($)
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award period	10 years
Stock-based compensation expense	$ 12.8
Unrecognized compensation cost related to unvested stock option grants	$ 126.7

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Amount of cost to be recognized for option under share-based payment arrangement.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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