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Maximum Period In Which Granted Stock Option Expired

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Aggregate number of common shares reserved for future issuance.

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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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Amount of cost to be recognized for nonvested award under share-based payment arrangement. Excludes share and unit options.

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- Definition

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

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Amount of transactions with related party during the financial reporting period.

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Amount of expense for salary and wage arising from service rendered by nonofficer and officer employees. Excludes allocated cost, labor-related nonsalary expense, and direct and overhead labor cost included in cost of good and service sold.

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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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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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- Definition

Gross number of share options (or share units) granted during the period.

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No definition available.

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Change in the weighted average exercise price of options outstanding.

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No definition available.

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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 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 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 new stock issued during the period.

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Stock-based Compensation Plans - Additional Information (Detail) - USD ($)		12 Months Ended
	Nov. 12, 2020	Dec. 31, 2021	Dec. 31, 2020	Jun. 24, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Reserved shares of common stock	11,075,000
Options exercise period date of grant			15 years
Weighted Average Remaining Term (in Years), Outstanding as of December 31, 2020	15 years
Share-based compensation arrangement by share-based payment award, award vesting period		5 days
Share-based payment arrangement, expense	$ 4,900
Share-based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount		$ 2,100,000
Former CTO Retirement Agreement [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Related party transaction fees payable per month		$ 20,000,000
Share-based payment award, shares vested and expected to vest		1,772,000
Salary expense		$ 500,000
Share-based Payment Arrangement, Tranche Two [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangements by share-based payment award, options, grants in period, weighted average exercise price	$ 1.13
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition		3 years 8 months 8 days
Share-based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount		$ 10,100,000
Restricted Stock Units (RSUs) [Member] \| Former CTO Retirement Agreement [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock issued during the period shares		250,000
Share-based payment arrangement, expense		$ 13,400,000
Share-based Payment Arrangement, Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, options, grants in period, gross		281,748
Weighted Average Remaining Term (in Years), Outstanding as of December 31, 2020		13 years 25 days
Share-based compensation arrangements by share-based payment award, options, grants in period, weighted average exercise price	$ 1.13	$ 1.13
Share-based payment award, shares vested and expected to vest		12,126,266
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition		4 years 6 months 29 days
Stock Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Reserved shares of common stock		16,250,000
Options exercise period date of grant		15 years
Share-based compensation arrangement by share-based payment award, options, grants in period, gross	5,537,500
Share-based compensation arrangement by share-based payment award, options, outstanding, period increase (decrease), weighted average exercise price	$ 0.56
Stock Incentive Plan [Member] \| Share-based Payment Arrangement, Employee [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangements by share-based payment award, options, grants in period, weighted average exercise price	$ 1.13
Share-based payment arrangement, expense	$ 4,500
Stock Incentive Plan [Member] \| Share-based Payment Arrangement, Tranche Two [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based payment arrangement, expense	$ 1,200,000
2021 Equity Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Reserved shares of common stock				23,226,543
Business combination share based compensation by share based payment award shares subject to outstanding awards converted into awards		21,339,493