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Employee Benefit Plans - Narrative (Details)
$ in Millions
1 Months Ended 3 Months Ended
Jan. 04, 2021
item
Jan. 31, 2021
USD ($)
shares
Mar. 31, 2021
USD ($)
shares
Mar. 31, 2020
USD ($)
Dec. 31, 2020
USD ($)
2005 Incentive Plan          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Shares available for issuance (in shares) | shares     6,000,000.0    
Restricted Stock          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Compensation cost     $ 0.8 $ 1.1  
Performance Share Units          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Number of components of equity awards granted | item 2        
Percentage based on service and market conditions 50.00%        
Percentage based on service and performance conditions 50.00%        
Compensation cost     1.0 1.1  
Performance Period   3 years      
Share-based payment awards vested (in shares) | shares   368,038      
Award vesting percentage   200.00%      
Performance Share Units | Common Stock          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Share-based payment awards vested (in shares) | shares   736,075      
Fair value of awards vested   $ 3.1      
Performance Share Units | Maximum          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Award vesting percentage 200.00%        
Performance Share Units | Minimum          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Award vesting percentage 0.00%        
Restricted Stock Units          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Compensation cost     0.2    
Fixed Value Cash Awards          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Long-term incentive cash awards granted     $ 3.4   $ 4.7
Vesting period     3 years    
Compensation expense     $ 1.0 $ 1.2  
ESPP          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Shares available for issuance (in shares) | shares     1,700,000    
Purchase limit per employee (in shares) | shares     260