Aggregate number of common shares reserved for future issuance.

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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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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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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Equity Incentive Plans and Stock-Based Compensation - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	May 31, 2022	Mar. 31, 2021	Sep. 30, 2020
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation, exercise price	$ 19.63
Weighted-average grant date fair value per share for stock options granted	$ 8.70	$ 16.77	$ 3.68
Intrinsic value of options exercised	$ 7.7	$ 66.0	$ 1.5
Expected Dividend Rate	0.00%
Employee Stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expected Dividend Rate	0.00%	0.00%
Restricted Stock Units (RSUs)
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted-average grant date fair value of RSUs granted	$ 18.63	$ 34.78	$ 28.66
Fair value of RSUs vested	$ 4.5	$ 1.4	$ 0.1
2020 Plan \| Equity Incentive Plans
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock reserved for issuance	8,509,813		5,125,000	3,780,412	3,677,385
2017 Plan and the 2020 Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock options, expiration period	10 years
2017 Plan and the 2020 Plan \| Minimum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation, vesting period	4 years
2017 Plan and the 2020 Plan \| Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation, vesting period	5 years
2017 Plan and the 2020 Plan \| Restricted Stock Units (RSUs)
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation, exercise price	$ 0
2020 Employee Stock Purchase Plan \| Employee Stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock reserved for issuance	2,405,734			945,103	919,346	1,025,000