Stockholders' Equity - Stock Option Activity - Additional Information (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	6 Months Ended
Jun. 30, 2021	Dec. 31, 2020
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate intrinsic value price per share (in dollars per share)	$ 176.80
Number of options, Exercised (in shares)	0
Total intrinsic value of options exercised	$ 5.1
Number of options outstanding (in shares)	6,366	6,366
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options outstanding (in shares)	2,100

Aggregate intrinsic value price per share.

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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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Number of options outstanding, including both vested and non-vested options.

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Number of share options (or share units) exercised during the current period.

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