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Stock-Based Compensation - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Mar. 04, 2013
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Jul. 27, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Grants of ISO and non-qualified stock options (shares)       396,688    
Effective income tax rate reconciliation, share-based compensation, excess tax benefit, amount   $ 1,400   $ 1,400    
Tax benefit from exercise of stock options       0    
Excess Tax Benefit from Share-based Compensation, Operating Activities       0 $ 1,551  
Selling, general and administrative expenses            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Stock-based compensation costs charged to operations   $ 1,000 $ 2,000 $ 3,100 2,900  
Amended Plan            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Increase in the maximum number of shares available under the Plan 210,000          
New maximum number of shares available under the Plan 14,242,061          
Number of shares reserved under the Plan   5,230,642   5,230,642    
Maximum number of shares available for grant under the Plan   89,035   89,035    
2015 Plan            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
New maximum number of shares available under the Plan           8,400,000
Maximum number of shares available for grant under the Plan   7,843,075   7,843,075    
ISO            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Grants of ISO and non-qualified stock options (shares)   20,166   130,208    
NQO            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Grants of ISO and non-qualified stock options (shares)   834   266,480    
Restricted Stock Units (RSUs)            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Granted (shares)   4,210   87,203    
Fair value of awards granted       $ 2,200    
Award vesting period       3 years    
Restricted Stock Award (RSAs)            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Granted (shares)   31,871   31,871    
Award holding restriction period       3 years    
Fair value of awards granted       $ 800    
Additional paid-in capital            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Tax benefit from exercise of stock options       $ 0 $ 1,600