Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation - Additional Information (Details)

v3.20.2
Stock-Based Compensation - Additional Information (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Stock options    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Options, outstanding, intrinsic value $ 0.3  
Options, exercisable, intrinsic value $ 0.3  
Term for outstanding stock 4 years 6 months  
Term for exercisable stock 4 years 7 months 6 days  
Performance stock units    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Granted (in shares) 966,242  
Vesting period 3 years  
Incentive Award Plan    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Compensation not yet recognized, stock options $ 20.7  
Compensation cost not yet recognized, period for recognition 2 years 4 months 24 days  
Tax benefit from compensation expense $ 0.5 $ 1.8
Incentive Award Plan | Restricted stock units    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Granted (in shares) 949,214  
Restricted stock units, conversion of stock, conversion rights (in shares) 1  
Compensation not yet recognized, stock options $ 10.5  
Compensation cost not yet recognized, period for recognition 2 years 4 months 24 days  
Minimum | Performance stock units    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Actual number of shares that may be issued (as a percent) 0.00%  
Maximum | Performance stock units    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Actual number of shares that may be issued (as a percent) 200.00%  
Employees and Officers | Incentive Award Plan | Restricted stock units    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Vesting period 3 years  
Director | Incentive Award Plan | Restricted stock units    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Vesting period 1 year