Nature of the Business and Basis of Presentation - Additional Information (Details) $ / shares in Units, $ in Thousands			3 Months Ended
	Oct. 06, 2020 USD ($) $ / shares shares	Sep. 25, 2020	Mar. 31, 2021 USD ($)	Mar. 31, 2020 USD ($)	Dec. 31, 2020 USD ($)
Class Of Stock [Line Items]
Net loss			$ 20,971	$ 11,912
Accumulated deficit			204,794		$ 183,823
Cash, cash equivalents and marketable securities			$ 346,000
Reverse stock split		one-for-8.4335	one-for-8.4335
Stock split conversion ratio		0.118574732	0.118574732
Common Stock | IPO
Class Of Stock [Line Items]
Initial public offering closing date	Oct. 06, 2020
Issued shares of common stock | shares	11,040,000
Shares issued price per share | $ / shares	$ 19.00
Net proceeds after deducting underwriting discounts, commissions and expenses	$ 191,200
Outstanding shares of preferred stock automatically converted | shares	30,355,379