v3.23.3
Stockholders' Equity - Restricted and Performance Restricted Stock Units (Details) - USD ($)
$ / shares in Units, $ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2023
Mar. 31, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Monte Carlo Valuation Model          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Granted (in dollars per share)   $ 0.39      
Weighted- Average Grant Date Fair Value per Share          
Granted (in dollars per share)   $ 0.39      
Restricted stock units          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Fair value of options vested $ 2.8   $ 6.7 $ 15.9 $ 23.9
Total unrecognized compensation cost related to unvested RSUs $ 37.6     $ 37.6  
Weighted average period for recognition of compensation cost (in years)       1 year 10 months 24 days  
Granted (in dollars per share)       $ 6.45  
Number of awards outstanding (in shares) 5,498,359     5,498,359  
Number of Units          
Beginning balances of the period (in shares)   4,739,861   4,739,861  
Granted (in shares)       4,080,159  
Vested (in shares)       (2,684,619)  
Forfeited (in shares)       (637,042)  
Ending balances of the period (in shares) 5,498,359     5,498,359  
Weighted- Average Grant Date Fair Value per Share          
Beginning balances of the period (in dollars per share)   $ 14.24   $ 14.24  
Granted (in dollars per share)       6.45  
Vested (in dollars per share)       14.74  
Forfeited (in dollars per share)       10.69  
Ending balances of the period (in dollars per share) $ 8.62     $ 8.62  
Restricted stock units | Equity Incentive Plan 2017          
Number of Units          
Granted (in shares)       215,054  
Restricted stock units | Minimum          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Vesting period (in years)       3 years  
Restricted stock units | Maximum          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Vesting period (in years)       4 years  
Performance restricted stock units          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Total unrecognized compensation cost related to unvested RSUs $ 4.9     $ 4.9  
Weighted average period for recognition of compensation cost (in years)       1 year 2 months 12 days  
Share-based payment award granted (in shares)   1,400,000      
Aggregate grant date fair value   $ 12.2      
Award adjustment based on total shareholder return (as a percent)   20.00%      
Total shareholder return multiplier maximum percent (as a percent)   0.00%      
Granted (in dollars per share)       $ 9.55  
Number of awards outstanding (in shares) 1,946,407     1,946,407  
Number of Units          
Beginning balances of the period (in shares)   1,651,864   1,651,864  
Granted (in shares) 0   0 1,176,077  
Vested (in shares)       0  
Forfeited (in shares)       (881,534)  
Ending balances of the period (in shares) 1,946,407     1,946,407  
Weighted- Average Grant Date Fair Value per Share          
Beginning balances of the period (in dollars per share)   $ 22.74   $ 22.74  
Granted (in dollars per share)       9.55  
Vested (in dollars per share)       0  
Forfeited (in dollars per share)       19.33  
Ending balances of the period (in dollars per share) $ 16.04     $ 16.04  
Performance restricted stock units | Tranche One          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Award vesting percentage (as a percent)   125.00%      
Performance restricted stock units | Minimum          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Award vesting percentage (as a percent)   0.00%      
Award eligible for vesting percentage (as a percent)   0.00%      
Performance restricted stock units | Maximum          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Award vesting percentage (as a percent)   150.00%      
Award eligible for vesting percentage (as a percent)   130.00%      
Performance Restricted Stock Units, Performance Metrics Not Yet Defined          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Number of awards outstanding (in shares) 1,300,000     1,300,000  
Number of Units          
Beginning balances of the period (in shares)   1,000,000   1,000,000  
Ending balances of the period (in shares) 1,300,000     1,300,000