Annual report pursuant to Section 13 and 15(d)

Summary of Share-Based Compensation Expense (Detail)

v3.6.0.2
Summary of Share-Based Compensation Expense (Detail) - USD ($)
$ in Thousands
4 Months Ended 8 Months Ended 12 Months Ended
Dec. 31, 2016
Sep. 12, 2016
Dec. 31, 2015
Dec. 31, 2014
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]        
Share-based compensation (equity-classified) $ 81 $ 1,511 $ 4,540 $ 3,627
Allocated Share-based Compensation Expense 81 1,492 3,829 8,147
Liability-classified awards        
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]        
Share-based compensation (equity-classified) $ 0 $ (19) $ (711) $ 4,520