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Share-Based Payments - Additional Information (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Apr. 16, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Recognized stock-based compensation expense $ 15,897 $ 13,588 $ 13,314  
Restricted Stock        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Unrecognized stock-based compensation expense 100      
RSU        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Unrecognized stock-based compensation expense $ 35,100      
LTIP        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of shares authorized (in shares)       7,000,000
Common stock, shares delivered (in shares) 433,585 378,855 200,859  
LTIP | RSU        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock units vested (in shares) 730,980 741,210 938,541  
Adjustments to additional paid in capital, income tax deficiency from share-based compensation $ 5,000 $ 4,800 $ 2,300  
Common Stock        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share price (in dollars per share) $ 18.29 $ 16.66    
Common stock, shares delivered (in shares) 466,370 378,855 200,859