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Share-Based Compensation - Summary of Activity of Option Plans (Details)	3 Months Ended
	Mar. 31, 2022 $ / shares shares
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Outstanding Option Shares, Beginning Balance | shares	9,920,314
Option, Granted | shares	2,938,074
Option, Exercised | shares	(233,001)
Option, Forfeited/canceled | shares	(739,815)
Outstanding Option Shares, Ending Balance | shares	11,885,572
Weighted-Average Exercise Price Outstanding at Beginning Balance | $ / shares	$ 9.28
Weighted-Average Exercise Price, Granted | $ / shares	3.98
Weighted-Average Exercise Price, Exercised | $ / shares	1.46
Weighted-Average Exercise Price, Forfeited/canceled | $ / shares	10.00
Weighted-Average Exercise Price Outstanding at Ending Balance | $ / shares	$ 8.08

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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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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iv)(3)-(4)
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Weighted average price of options that were either forfeited or expired.

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Gross number of share options (or share units) granted during the period.

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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 per share amount at which grantees can acquire shares of common stock by exercise of options.

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

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