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Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2020

Share-based Payment Arrangement [Abstract]

Summary of Stock Option Activity

A summary of our stock option activity for the year ended December 31, 2020 is as follows (number of shares in thousands):

						Number of Shares						Weighted Average Exercise Price per Share						Weighted Average Remaining Contractual Life in Years
Options outstanding as of December 31, 2019						1,342						$	11.84					5.9
Options granted						—						—
Options exercised						(119)						6.93
Options cancelled/forfeited						(55)						23.75
Options outstanding as of December 31, 2020						1,168						$	11.77					5.0
At December 31, 2020:
Options vested and expected to vest						1,168						$	11.77					5.0
Options exercisable						1,168						$	11.77					5.0

Schedule of Restricted Stock Units Activity

A summary of activity in connection with our RSUs for the year ended December 31, 2020 is as follows (number of shares in thousands):

						Number of Shares						Weighted Average Grant Date Fair Value per Share
Unvested as of December 31, 2019						646						$	52.42
Granted						174						112.24
Vested						(268)						36.58
Forfeited						(69)						70.52
Unvested as of December 31, 2020						483						$	80.20

Schedule of Restricted Stock Activity

A summary of activity in connection with our RSAs for the year ended December 31, 2020 is as follows (number of shares in thousands):

						Number of Shares						Weighted- Average Grant Date Fair Value per Share
Unvested as of December 31, 2019						5						$	105.88
Granted						5						153.41
Vested						(5)						105.88
Forfeited						—						—
Unvested as of December 31, 2020						5						$	153.41

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Tabular disclosure of the changes in outstanding nonvested restricted stock shares.

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Tabular disclosure of the changes in outstanding nonvested restricted stock units.

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Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value.

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