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Share Based Compensation - Narrative (Details) - USD ($)
$ in Millions
1 Months Ended 3 Months Ended 9 Months Ended
Feb. 29, 2020
Mar. 31, 2020
Sep. 30, 2020
Stock Option      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting period     4 years
Total unrecognized compensation cost     $ 14.9
Weighted-average period of total unrecognized compensation cost, in years     1 year 4 months 24 days
Restricted Stock      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Granted (in shares)     38,795
Total unrecognized compensation cost     $ 6.8
Weighted-average period of total unrecognized compensation cost, in years     1 year 1 month 6 days
Restricted Stock | Employees and Non-employee Directors      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting period     3 years
Cash-settled Restricted Stock      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting period     3 years
Granted (in shares)     20,670
Total unrecognized compensation cost     $ 3.9
Weighted-average period of total unrecognized compensation cost, in years     1 year
Performance Shares Units      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting period   3 years  
Granted (in shares)   54,545 42,690
Payout percent   250.00%  
Stock issued during period (in shares) 136,370    
Total unrecognized compensation cost     $ 9.9
Weighted-average period of total unrecognized compensation cost, in years     1 year