Quarterly report pursuant to Section 13 or 15(d)

Equity-Based Compensation (Details)

v3.21.2
Equity-Based Compensation (Details) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Oct. 22, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Number of units authorized to issue (in units)         4,573,463
Number of options granted (in units) 0   229,195    
Equity-based compensation $ 0.8 $ 0.9 $ 2.5 $ 2.6  
Time-Vesting Options          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Number of options granted (in units)     53,858    
Weighted-average grant date fair value for options granted (in dollars per unit)     $ 7.98    
Compensation expense not yet recognized 5.1   $ 5.1    
Compensation expense not yet recognized, weighted-average period     1 year 4 months 24 days    
Time-Vesting and Performance-Vesting Options          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Number of options granted (in units)     175,337    
Performance-Vesting Options          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Weighted-average grant date fair value for options granted (in dollars per unit)     $ 5.12    
Compensation expense not yet recognized $ 13.1   $ 13.1    
Compensation expense not yet recognized, weighted-average period     1 year 3 months 18 days