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Discontinued Operations - Schedule of Condensed Cash Flow Information (Detail) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Discontinued Operations And Disposal Groups [Abstract]    
Deferred income taxes $ 91,497 $ 7,427
Depreciation and amortization of property, plant and equipment 1,607 3,468
Stock-based compensation 955 443
Expenditures for property, plant and equipment 273 728
Software and software development costs $ 675 $ 1,603