Stockholders' equity - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands			12 Months Ended
	Aug. 05, 2020	Jul. 28, 2020	Dec. 31, 2020	Dec. 31, 2021
Class Of Stock [Line Items]
Issuance of common stock from initial public offering			$ 210,612
Common stock, shares authorized			150,000,000	150,000,000
Common stock, par value			$ 0.001	$ 0.001
Preferred Stock Shares Authorized			0	10,000,000
Preferred Stock, par value			$ 0.001	$ 0.001
Common stock, voting rights		Each share of common stock entitles the holders to one vote on all matters submitted to a vote of the Company’s stockholders.
IPO
Class Of Stock [Line Items]
Capital units, authorized		160,000,000
Common stock, shares authorized		150,000,000
Common stock, par value		$ 0.001
Preferred Stock Shares Authorized		10,000,000
Preferred Stock, par value		$ 0.001
Redeemable Convertible Preferred Stock
Class Of Stock [Line Items]
Redeemable Convertible Preferred Stock Shares Issued				0
Redeemable Convertible Preferred Stock Shares Outstanding				0
Common stock
Class Of Stock [Line Items]
Issuance of common stock from initial public offering, shares			12,091,675
Issuance of common stock from initial public offering			$ 12
Convertible Preferred Stock, Shares Issued upon Conversion		22,460,076		22,460,076
Common stock | IPO
Class Of Stock [Line Items]
Issuance of common stock from initial public offering, shares		10,586,316
Issuance of common stock from initial public offering		$ 201,100
Proceeds from initial public offering, net of underwriting discount		$ 184,000
Underwriters exercise option to purchase additional shares of common stock	1,505,359
Net proceeds after deducting commissions from underwriter purchase of additional share of common stock	$ 26,600