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Equity Incentive Plans - Summary of Company Stock Option Activity (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2022	Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Number of Shares	4,996,945
Number of Shares, Granted	1,328,000
Forfeited/cancelled	(294,402)
Number of Shares, Exercised/released	(85,644)
Number of Shares	5,944,899	4,996,945
Number of Shares Vested and exercisable as of March 31, 2022	2,069,638
Number of Shares, Vested and expected to vest as of March 31, 2022	5,914,899
2011 Plan and 2021 Plan
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Weighted-Average Exercise Price	$ 6.05
Weighted-Average Exercise Price, Granted	17.43
Weighted-Average Exercise Price, Forfeited/cancelled	0.85
Weighted-Average Exercise Price, Exercised/released	0.93
Weighted-Average Exercise Price	8.92	$ 6.05
Weighted-Average Exercise Price, Vested and exercisable as of March 31, 2022	3.55
Weighted-Average Exercise Price, Expected to vest as of March 31, 2022	$ 8.97
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term
Weighted Average Remaining Contractual Term	8 years 3 months 18 days	7 years 7 months 6 days
Weighted average contractual term, vested and exercisable	6 years 8 months 12 days
Weighted average contractual term, vested and expected	8 years 3 months 18 days
Average Intrinsic Value	$ 25,271	$ 58,420
Average Intrinsic Value, Vested and exercisable as of March 31, 2022	17,040
Average Intrinsic Value, Vested and expected as of March 31, 2022	$ 24,927

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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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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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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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Amount by which current fair value of underlying stock exceeds exercise price of fully vested and expected to vest exercisable or convertible options. 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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Number of fully vested and expected to vest exercisable options that may 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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