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Consolidated Condensed Statements of Stockholders’ Equity - USD ($)
$ in Millions
Total
Additional Paid-in Capital
Accumulated Deficit
Common Class A
Common Stock
Common Class B
Common Stock
Beginning balance (in shares) at Dec. 31, 2020       49,828,517 66,714,287
Beginning balance at Dec. 31, 2020 $ 35.9 $ 61.7 $ (25.8) $ 0.0 $ 0.0
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Exercise of stock options (in shares)       147,319 525,044
Exercise of stock options 0.0        
Issuance of warrants and warrant expense 78.2 78.2      
Stock-based compensation 0.9 0.9      
Net loss (94.9)   (94.9)    
Ending balance (in shares) at Mar. 31, 2021       49,975,836 67,239,331
Ending balance at Mar. 31, 2021 20.1 140.8 (120.7) $ 0.0 $ 0.0
Beginning balance (in shares) at Dec. 31, 2021       162,789,591 74,937,945
Beginning balance at Dec. 31, 2021 698.9 1,072.5 (373.6) $ 0.0 $ 0.0
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Conversion of Class B to Class A common stock (in shares)       1,757,980 (1,757,980)
Conversion of Class B to Class A common stock 0.0        
Issuance of restricted stock and restricted stock expense (in shares)       300,014  
Issuance of restricted stock and restricted stock expense $ 16.0 16.0      
Exercise of stock options (in shares) 753,261     353,640 399,621
Exercise of stock options $ 0.1 0.1      
Issuance of warrants and warrant expense 1.2 1.2      
Stock-based compensation 6.7 6.7      
Net loss (59.2)   (59.2)    
Ending balance (in shares) at Mar. 31, 2022       165,201,225 73,579,586
Ending balance at Mar. 31, 2022 $ 663.7 $ 1,096.5 $ (432.8) $ 0.0 $ 0.0