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Equity-Based Compensation - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Aug. 20, 2020
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Equity-based compensation expense	$ 5,726	$ 664	$ 8,898	$ 1,035
Research and Development Expense
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Equity-based compensation expense	2,917	423	4,642	662
Stock Options
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Intrinsic value of stock options exercised	$ 17,100	$ 0	$ 37,100	$ 100
Weighted-average fair value of options granted	$ 26.99	$ 3.32	$ 28.66	$ 3.62
Unrecognized stock-based compensation expense	$ 69,700		$ 69,700
Unrecognized compensation cost, recognition period			2 years 9 months 18 days
Equity-based compensation expense	5,613	$ 606	$ 8,684	$ 916
Stock Options \| Research and Development Expense
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Equity-based compensation expense	2,821	$ 371	$ 4,458	553
Restricted Stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unrecognized compensation cost, recognition period			1 year
Unrecognized stock-based compensation expense	$ 200		$ 200
Equity-based compensation expense			100	100
Restricted Stock \| Research and Development Expense
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Equity-based compensation expense			$ 100	$ 100
2020 Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares authorized for issuance under plan					4,457,370
Maximum number of shares to be issued, percentage			4.00%
Shares remaining available for future grants	3,150,858		3,150,858
2020 ESPP
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares authorized for issuance under plan					445,653
Share-based compensation, description			The 2020 ESPP provides that the number of shares reserved and available for issuance will automatically increase on January 1, 2021 and each January 1 thereafter through January 1, 2030, by the least of (i) 438,898 shares of common stock, (ii) 1% of the Company’s outstanding number of shares of common stock on the immediately preceding December 31 or (iii) such lesser number of shares of common stock as determined by the administrator of the 2020 ESPP.
2020 ESPP \| Lesser of Potential Outcome 1
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of additional shares authorized			438,898
2020 ESPP \| Lesser of Potential Outcome 2
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Maximum number of shares to be issued, percentage			1.00%
2018 Plan \| Restricted Stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Granted	0	0	0	0