Fair value of a share of common stock.

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- Definition

Maximum threshold common stock issuable on exercise of incentive stock options.

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Period of service minimum needed for vesting of stock options.

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Share based compensation arrangement by share based payment award Cumulative annual increase in common stock shares reserved for issuance, percentage.

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Share based compensation arrangement by share based payment award Cumulative annual increase in shares reserved for issuance, percentage.

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Share based compensation arrangement by share based payment award shares of common stock outstanding maximum cumulative annual increase.

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- Definition

Aggregate number of common shares reserved for future issuance.

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The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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- Definition

Amount of cost to be recognized for option under share-based payment arrangement.

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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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- Definition

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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Number of shares authorized for issuance under share-based payment arrangement.

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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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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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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Number of shares issued during the period as a result of an employee stock purchase plan.

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Stock-Based Compensation - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Jan. 01, 2022	Dec. 31, 2021	Jun. 30, 2021	Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value of a share of common stock					$ 16	$ 0.83
Share based compensation by share based payment arrangement vesting period	48 months
Period of service minimum needed for vesting of stock options	1 year
Share based compensation by share based payment arrangement contractual term	10 years
Share based compensation by share based payment arrangement unrecognized compensation costs non vested options	$ 9.4
Share based compensation by share based payment arrangement unrecognized compensation costs weighted aveage period of recognition	2 years 9 months 18 days
Weighted average grant date fair value of options granted	$ 3.77	$ 1.34
Common stock shares authorized	300,000,000			300,000,000
Stock Options Granted Before December 31, 2017 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation by share based payment arrangement contractual term	10 years
2013 Amended And Restated Stock Performance Plan [Member] \| Stock Options Granted Before December 31, 2017 [Member] \| Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation by share based payment arrangement vesting period	3 months
2013 Amended And Restated Stock Performance Plan [Member] \| Stock Options Granted Before December 31, 2017 [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation by share based payment arrangement vesting period	24 months
2021 Equity Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for future grant	4,030,960				7,698,282
Share based compensation arrangement by share based payment award Cumulative annual increase in common stock shares reserved for issuance, percentage					5.00%
Share based compensation arrangement by share based payment award number of shares authorized	9,721,945
2021 Equity Incentive Plan [Member] \| New Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for future grant					3,550,000
2021 Equity Incentive Plan [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum threshold common stock issuable on exercise of incentive stock options					12,000,000
Common stock, capital shares reserved for future issuance			2,023,663
Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, capital shares reserved for future issuance			404,732
Share based compensation arrangement by share based payment award Cumulative annual increase in shares reserved for issuance, percentage					1.00%
Share based compensation arrangement by share based payment award shares of common stock outstanding maximum cumulative annual increase					800,000
Stock issued during period shares employee stock purchase plans	0
Common stock shares authorized	779,732
Employee Stock Purchase Plan [Member] \| Employee Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, capital shares reserved for future issuance					375,000
Two Thousand And Thirteen Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for future grant					667,104
2013 and 2021 Equity Incentive Plan [Member] \| Stock Options Granted After December 31, 2017 [Member] \| Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation by share based payment arrangement vesting period	12 months
2013 and 2021 Equity Incentive Plan [Member] \| Stock Options Granted After December 31, 2017 [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation by share based payment arrangement vesting period	36 months