Stockholders' Equity - Summary of Stock Option Activity Under Equity Incentive Plan (Details)	12 Months Ended
Dec. 31, 2020 $ / shares shares
Number of Shares
Beginning balance (in shares) \| shares	9,265,390
Granted (in shares) \| shares	2,126,182
Exercised (in shares) \| shares	(2,178,252)
Cancelled (in shares) \| shares	(306,696)
Ending balance (in shares) \| shares	8,906,624
Weighted-Average Exercise Price
Beginning balance (in USD per share) \| $ / shares	$ 5.72
Granted (in USD per share) \| $ / shares	10.17
Exercised (in USD per share) \| $ / shares	5.63
Cancelled (in USD per share) \| $ / shares	6.40
Ending balance (in USD per share) \| $ / shares	$ 6.78

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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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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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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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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