Share-Based Compensation - Summary of Option Activity (Details) - $ / shares	6 Months Ended
Jun. 30, 2022
Share-Based Payment Arrangement [Abstract]
Number of Options, Outstanding at December 31, 2021	17,300,740
Number of Options, Granted	3,165,732
Number of Options, Exercised	(397,534)
Number of Options, Forfeited	(2,845,240)
Number of Options, Outstanding at June 30, 2022	17,223,698
Number of Options, Vested and expected to vest, as of June 30, 2022	17,223,698
Number of Options, Exercisable, June 30, 2022	8,268,318
Weighted Average Exercise Price, Outstanding at December 31, 2021	$ 6.57
Weighted Average Exercise Price, Granted	0.56
Weighted Average Exercise Price, Exercised	0.00
Weighted Average Exercise Price, Forfeited	7.13
Weighted Average Exercise Price, Outstanding at June 30, 2022	5.52
Weighted Average Exercise Price, Vested and expected to vest, as of June 30, 2022	5.52
Weighted Average Exercise Price, Exercisable, June 30, 2022	$ 6.84

No definition available.

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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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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.

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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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Number of fully vested and expected to vest options outstanding that can be converted into shares under option plan. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Weighted-average exercise price, at which grantee can acquire shares reserved for issuance, for fully vested and expected to vest options outstanding. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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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 price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

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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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