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Discontinued Operations - Schedule of Condensed Cash Flow Information (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Discontinued Operations And Disposal Groups [Abstract]      
Deferred income taxes $ 88,356 $ 8,917 $ 7,463
Depreciation and amortization of property, plant and equipment 1,607 4,566 4,677
Stock-based compensation 955 634 1,140
Expenditures for property, plant and equipment 273 863 2,357
Software and software development costs $ 675 $ 2,466 $ 360