XML 47 R36.htm IDEA: XBRL DOCUMENT v3.21.1
The company and basis of presentation - Initial public offering (Details) - Subsequent Event
$ / shares in Units, $ in Millions
1 Months Ended
Apr. 20, 2021
shares
Apr. 08, 2021
Apr. 30, 2021
USD ($)
$ / shares
shares
Subsequent Event [Line Items]      
Reverse stock split ratio   2.33  
Class A Common Stock      
Subsequent Event [Line Items]      
Conversion of stock 2,563,765   2,563,765
Conversion Of Preferred Stock At Initial Public Offering [Member]      
Subsequent Event [Line Items]      
Number of shares of common stock issued on conversion of preferred stock 26,545,579    
IPO      
Subsequent Event [Line Items]      
Stock issued during period     7,567,000
Proceeds from public offering, net of discounts, commissions and other offering costs | $     $ 138.2
Price per share | $ / shares     $ 20.00
Over-Allotment Option      
Subsequent Event [Line Items]      
Stock issued during period     987,000