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Stock-Based Compensation - Performance Shares (Details)
9 Months Ended
Sep. 30, 2020
$ / shares
shares
Share-based Payment Arrangement, Tranche Two, EBITDA metric  
Stock Based Compensation  
Vesting period 3 years
Performance shares  
Stock Based Compensation  
Granted (in shares) | shares 404,863
Performance shares | Share-based Payment Arrangement, Tranche One, Total Shareholder Return  
Stock Based Compensation  
Vesting (as a percent) 50.00%
Grant date fair value (in dollars per share) | $ / shares $ 8.91
Vesting period 3 years
Fair value assumptions  
Risk-free interest rate (as a percent) 0.12%
Expected volatility (as a percent) 63.27%
Expected life 3 years
Performance shares | Share-based Payment Arrangement, Tranche Two, EBITDA metric  
Stock Based Compensation  
Vesting (as a percent) 50.00%
Vesting period 3 years
Performance shares | Minimum  
Stock Based Compensation  
Percentage of target shares that may be earned upon achievement of threshold performance metric 50.00%
Performance shares | Maximum  
Stock Based Compensation  
Percentage of target shares that may be earned upon achievement of threshold performance metric 200.00%