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Performance Awards - Schedule of Performance Activity (Details) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]    
Unrecognized Compensation $ 2,800  
Performance Awards    
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]    
Unrecognized Compensation 1,714 $ 1,500
2014 EIP | Performance Awards    
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]    
Grant Amount 5,008  
Forfeitures/ Adjustments (1,222)  
Payments 0  
Grant value 3,786  
2014 EIP | November 2014 | Performance Awards    
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]    
Grant Amount 2,087  
Forfeitures/ Adjustments (1,062)  
Payments 0  
Grant value 1,025  
Unrecognized Compensation $ 85  
Remaining Periods (in Months) to Vesting 4 months  
2014 EIP | November 2015 | Performance Awards    
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]    
Grant Amount $ 1,487  
Forfeitures/ Adjustments (160)  
Payments 0  
Grant value 1,327  
Unrecognized Compensation $ 553  
Remaining Periods (in Months) to Vesting 16 months  
2014 EIP | November 2016 | Performance Awards    
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]    
Grant Amount $ 1,434  
Forfeitures/ Adjustments 0  
Payments 0  
Grant value 1,434  
Unrecognized Compensation $ 1,076  
Remaining Periods (in Months) to Vesting 28 months