Share-Based Compensation - Stock Options (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	12 Months Ended
Mar. 31, 2022	Dec. 31, 2021
Stock Options
Beginning balance (in shares)	15,712,434
Exercised (in shares)	(194,977)
Cancelled/Forfeited/Expired (in shares)	(556,497)
Ending balance (in shares)	14,960,960	15,712,434
Vested and exercisable, end of period (in shares)	4,549,923
Weighted Average Exercise Price
Beginning balance (in dollars per share)	$ 2.19
Exercised (in dollars per share)	0.54
Cancelled/Forfeited/Expired (in dollars per share)	0.63
Ending balance (in dollars per share)	2.27	$ 2.19
Vested and exercisable, end of period (in dollars per share)	$ 0.80
Weighted-Averages Life (Years) and Aggregate Intrinsic Value
Weighted- Averages Life (Years)	8 years 8 months 12 days
Weighted-average life, vested and exercisable	8 years
Intrinsic value, Ending	$ 472,858
Aggregate intrinsic value, vested and exercisable	$ 150,512
Previously Reported
Stock Options
Beginning balance (in shares)	5,031,310
Ending balance (in shares)		5,031,310
Weighted Average Exercise Price
Beginning balance (in dollars per share)	$ 6.85
Ending balance (in dollars per share)		$ 6.85
Weighted-Averages Life (Years) and Aggregate Intrinsic Value
Weighted- Averages Life (Years)		9 years 2 months 12 days
Intrinsic value, Beginning	$ 120,491
Intrinsic value, Ending		$ 120,491
Revision of Prior Period, Adjustment
Stock Options
Beginning balance (in shares)	10,681,124
Ending balance (in shares)		10,681,124
Weighted Average Exercise Price
Beginning balance (in dollars per share)	$ (4.66)
Ending balance (in dollars per share)		$ (4.66)

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired.

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Weighted average price of options that were either forfeited or expired.

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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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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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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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