Quarterly report pursuant to Section 13 or 15(d)

Compensation Plans (Details)

v3.20.2
Compensation Plans (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Equity-Based Compensation (Textual)        
Unrecognized compensation expense related to unvested stock options     $ 3.4  
Unrecognized compensation expense, weighted-average period     3 years 4 months 24 days  
Share-based Payment Arrangement, Compensation Expense Related To Forfeitures $ 2.0   $ 2.7  
Unrecognized compensation expense related to unvested common units     $ 1.0  
Unrecognized compensation expense related to unvested common units weighted-average period     1 year 10 months 24 days  
Equity Incentive Plan        
Equity-Based Compensation (Textual)        
Number of shares authorized (in shares) 5,000,000   5,000,000  
Employee Stock | Stock option        
Equity-Based Compensation (Textual)        
Share-based payment arrangement, expense $ 0.5 $ 0.3 $ 1.2 $ 0.6
Common Stock        
Equity-Based Compensation (Textual)        
Share-based payment arrangement, expense 0.5 $ 1.2 1.7 $ 5.5
Share-based compensation expense, including forfeitures $ 1.5   $ 1.0  
Restricted Stock        
Equity-Based Compensation (Textual)        
Number of shares issued (in shares) 15,000