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Stock Based Compensation - Additional Information (Detail) - USD ($)	3 Months Ended	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Share-based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount	$ 60,400,000	$ 60,400,000
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition	2 years 10 months 9 days
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized	9,564,798	9,564,798
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number	6,467,507	6,467,507		6,316,569
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount		6,502,794	10,684,435
Fair Value of Shares Vested		$ 7,400,000	$ 100,000
Share Based Compensation Number of Options Granted		328,873
Share Based Compensation Expected Dividend Yeild		$ 0
Shares Available for Future Equity Award Grants	9,433,408	9,433,408		7,928,031
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value		$ 26.69	$ 0.38
Stock Option Awards [Member]
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Shares Available for Future Equity Award Grants	2,930,614	2,930,614
Unvested Common Stock [Member]
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount		35,287	134,518