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Stockholders' Equity - Summary of Stock Option Award Activity (Details) - Stock Options - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Weighted-Average Exercise Price
Weighted-Average Exercise Price, Beginning balance	$ 10.37
Weighted-Average Exercise Price, Exercised	13.98
Weighted-Average Exercise Price, Ending balance	$ 10.16	$ 10.37
Weighted-Average Remaining Contractual Term
Weighted-Average Remaining Contractual Term (in years)	4 years 9 months 3 days	5 years 2 months 12 days
Aggregate Intrinsic Value
Aggregate Intrinsic Value, Outstanding	$ 223,515	$ 223,230
Class A Common Stock
Number of Shares
Number of Shares, Beginning balance	4,828
Number of Shares, Exercised	(314)
Number of Shares, Ending balance	4,514	4,828
Class B Common Stock
Number of Shares
Number of Shares, Beginning balance	796
Number of Shares, Exercised	(5)
Number of Shares, Ending balance	791	796

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Share-based Compensation Arrangement by Share-based Payment Award, Options, Aggregate Intrinsic Value [Abstract]

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Share-based Compensation Arrangement by Share-based Payment Award, Options, Weighted Average Remaining Contractual Term [Abstract]

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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

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