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Share Based Compensation - Narrative (Details) - USD ($)
$ in Millions
1 Months Ended 6 Months Ended 12 Months Ended
Feb. 29, 2020
Jun. 30, 2020
Dec. 31, 2019
Stock Option      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting period   4 years  
Total unrecognized compensation cost   $ 16.9  
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)   36,365  
Total unrecognized compensation cost   $ 7.7  
Weighted-average period of total unrecognized compensation cost, in years   1 year 2 months 12 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   $ 4.1  
Weighted-average period of total unrecognized compensation cost, in years   1 year 1 month 6 days  
Performance Shares Units      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting period     3 years
Granted (in shares)   42,690 54,545
Payout percent     250.00%
Stock issued during period (in shares) 136,370    
Total unrecognized compensation cost   $ 11.9  
Weighted-average period of total unrecognized compensation cost, in years   1 year 1 month 6 days