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Share Based Compensation - Narrative (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Oct. 04, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of shares authorized (in shares)   4,600,000
Options outstanding, Weighted average remaining contractual term (in years) 2 years 8 months 4 days  
Number of options that vested during the year (in shares) 0  
Restricted Stock    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Period of recognition for unrecognized costs (years) 6 months  
Unrecognized compensation expense $ 0.3  
Restricted Stock Units    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Vesting period (in years) 3 years  
Period of recognition for unrecognized costs (years) 2 years 5 months 1 day  
Unrecognized compensation expense $ 1.2  
Compensation expense $ 0.3  
Performance Share Units    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Vesting period (in years) 3 years  
Period of recognition for unrecognized costs (years) 2 years 8 months 8 days  
Unrecognized compensation expense $ 0.3  
Stock Options    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Vesting period (in years) 3 years  
Expiration period (in years) 7 years  
Options outstanding, Weighted average remaining life (in years) 2 years 2 months 4 days  
Minimum | Restricted Stock    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Vesting period (in years) 1 year  
Maximum | Restricted Stock    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Vesting period (in years) 3 years