Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Statements of Operations and Comprehensive Loss (Parenthetical)

v3.21.2
Condensed Consolidated Statements of Operations and Comprehensive Loss (Parenthetical) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Income Statement [Abstract]        
Unrealized gain on available-for-sale securities, tax $ 0.0 $ 0.0 $ 0.0 $ 0.0