XML 99 R77.htm IDEA: XBRL DOCUMENT v3.8.0.1
Performance Awards - Summary of Grant Activity (Details) - 2014 EIP - Performance Awards
$ in Thousands
12 Months Ended
Dec. 31, 2017
USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Grant Amount $ 6,592
Adjustments (1,058)
Forfeitures (1,331)
Payments (495)
Adjusted Award Value at December 31, 2017 3,708
November 2014  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Grant Amount 2,087
Adjustments (495)
Forfeitures (1,097)
Payments (495)
Adjusted Award Value at December 31, 2017 $ 0
Remaining Periods (in Months) to Vesting 0 months
November 2015  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Grant Amount $ 1,487
Adjustments 646
Forfeitures (197)
Payments 0
Adjusted Award Value at December 31, 2017 $ 1,936
Remaining Periods (in Months) to Vesting 10 months
November 2016  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Grant Amount $ 1,434
Adjustments (454)
Forfeitures (37)
Payments 0
Adjusted Award Value at December 31, 2017 $ 943
Remaining Periods (in Months) to Vesting 22 months
November 2017  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Grant Amount $ 1,584
Adjustments (755)
Forfeitures 0
Payments 0
Adjusted Award Value at December 31, 2017 $ 829
Remaining Periods (in Months) to Vesting 34 months