Nature of Business - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands	Nov. 03, 2020	Mar. 31, 2021	Dec. 31, 2020	Mar. 31, 2020
Nature of Business [Line Items]
Cash and cash equivalents		$ 833,751	$ 850,117	$ 17,147
IPO
Nature of Business [Line Items]
Share price	$ 24.00
Net proceeds from initial public offering ("IPO")	$ 317,605
IPO | Common Stock
Nature of Business [Line Items]
Shares issued	14,375,000
IPO | Series A, B, C, D and D-1 Convertible Preferred Stock | Common Stock
Nature of Business [Line Items]
Convertible preferred stock converted into shares	57,932,090