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Share-Based Compensation - Additional Information (Details) - USD ($)
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Share-based compensation $ 1,100,000 $ 300,000
Stock options granted 170,000  
Stock Options    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Share-based compensation award, vesting period 4 years  
Stock options granted 169,800 0
Share-based compensation award, grant date fair market value $ 7.77  
Excess tax benefit on stock options exercises, shown as operating cash inflows   $ 0
Unrecognized share-based compensation expense $ 1,300,000  
Unrecognized share-based compensation expense, vest over weighted-average period 3 years 10 months 24 days  
RSUs    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Share-based compensation award, vesting period 3 years  
Share-based compensation $ 600,000 $ 300,000
Unrecognized share-based compensation expense $ 7,800,000  
Unrecognized share-based compensation expense, vest over weighted-average period 2 years 6 months  
Unrecognized share-based compensation expense, expected to vest, Shares 600,000  
Unrecognized share-based compensation expense, weighted-average grant date fair value $ 23.52  
Share-based compensation award, granted 220,000  
Restricted Stock    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Share-based compensation $ 500,000  
Unrecognized share-based compensation expense $ 5,000,000  
Unrecognized share-based compensation expense, vest over weighted-average period 2 years 8 months 12 days  
Share-based compensation award, granted 129,000  
Share-based compensation expense, targeted performance percentage 100.00%  
Restricted Stock | Minimum    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Potential payout for awards 0  
Restricted Stock | Maximum    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Potential payout for awards 129,400  
Restricted Stock | Certain Executives    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Share-based compensation award, granted 129,400  
Performance Share Units    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Unrecognized share-based compensation expense $ 700,000  
Unrecognized share-based compensation expense, vest over weighted-average period 2 years 10 months 24 days  
Share-based compensation expense, targeted performance percentage 100.00%  
Performance Share Units | Minimum    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Potential payout for awards 0  
Performance Share Units | Maximum    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Potential payout for awards 47,850  
Performance Share Units | Certain Executive Officers and Senior Management    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Share-based compensation award, granted 31,900