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Stock-Based Compensation - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Mar. 04, 2013
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 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)       375,688    
Selling, general and administrative expenses            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Stock-based compensation costs charged to operations   $ 1.6 $ 0.5 $ 2.1 $ 0.9  
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   79,826   79,826    
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   7,868,285   7,868,285    
ISO            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Grants of ISO and non-qualified stock options (shares)       110,042    
NQO            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Grants of ISO and non-qualified stock options (shares)       265,646    
Restricted Stock Units (RSUs)            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Granted (shares)   82,993   82,993    
Fair value of awards granted       $ 2.1    
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       $ 0.8