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Stock-based Compensation - Narrative (Details) - Restricted Stock Units (RSUs) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 15, 2016
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Shares granted in period 111,281          
Stock granted, value $ 909          
Share-based compensation expense   $ 212 $ 100 $ 621 $ 100  
Share-based compensation expense not yet recognized   $ 4,100   $ 4,100    
2015 Omnibus Incentive Plan            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Shares granted in period           390,352
Stock granted, value           $ 4,100