Stock-Based Compensation - Summary of Stock Option Activity (Details) - $ / shares	3 Months Ended	12 Months Ended
Mar. 31, 2021	Dec. 31, 2020
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Number of shares, Outstanding at January 1, 2021	6,839,091
Number of shares, Granted	115,575
Number of shares, Exercised	(210,274)
Number of shares, Forfeited	(11,423)
Number of shares, Outstanding at March 31, 2021	6,732,969	6,839,091
Number of shares, Exercisable at March 31, 2021	1,209,260
Weighted average exercise price per share, Outstanding at January 1, 2021	$ 8.46
Weighted average exercise price per share, Granted	80.10
Weighted average exercise price per share, Exercised	1.84
Weighted average exercise price per share, Forfeited	7.94
Weighted average exercise price per share, Outstanding at March 31, 2021	9.90	$ 8.46
Weighted average exercise price per share, Exercisable at March 31, 2021	$ 1.99
Weighted average remaining contractual term (years), Outstanding	8 years 11 months 15 days	9 years 2 months 1 day
Weighted average remaining contractual term (years), Exercisable	8 years 3 months 3 days

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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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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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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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