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Performance Awards - Summary of Grant Activity (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2016
USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Unrecognized Compensation $ 4,200
November 2013 | Performance Awards  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Payments (300)
2014 EIP | Performance Awards  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Grant Amount 6,359
Forfeitures/Adjustments (2,255)
Payments (318)
Balance at December 31, 2016 3,786
Unrecognized Compensation 2,345
2014 EIP | November 2013 | Performance Awards  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Grant Amount 1,351
Forfeitures/Adjustments (1,033)
Payments (318)
Balance at December 31, 2016 0
Unrecognized Compensation $ 0
Remaining Periods (in Months) to Vesting 0 months
2014 EIP | November 2014 | Performance Awards  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Grant Amount $ 2,087
Forfeitures/Adjustments (1,062)
Payments 0
Balance at December 31, 2016 1,025
Unrecognized Compensation $ 256
Remaining Periods (in Months) to Vesting 9 months
2014 EIP | November 2015 | Performance Awards  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Grant Amount $ 1,487
Forfeitures/Adjustments (160)
Payments 0
Balance at December 31, 2016 1,327
Unrecognized Compensation $ 774
Remaining Periods (in Months) to Vesting 21 months
2014 EIP | November 2016 | Performance Awards  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Grant Amount $ 1,434
Forfeitures/Adjustments 0
Payments 0
Balance at December 31, 2016 1,434
Unrecognized Compensation $ 1,315
Remaining Periods (in Months) to Vesting 33 months