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Discontinued Operations - Schedule of Condensed Cash Flow Information (Detail) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Discontinued Operations And Disposal Groups [Abstract]    
Deferred income taxes $ (12,809) $ 967
Depreciation and amortization of property, plant and equipment 1,607 2,325
Stock-based compensation 573 643
Expenditures for property, plant and equipment 273 426
Software and software development costs $ 675 $ 1,286