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Discontinued Operations - Summarized Results of Discontinued Operations (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Discontinued Operations And Disposal Groups [Abstract]      
Net sales   $ 138,609 $ 274,086
Cost of sales   93,178 190,426
Selling, general and administrative expense   32,719 62,728
Transaction costs   2,535  
Interest expense     10
Other expense (income), net   175 608
Income from operations of discontinued operations   10,002 20,314
Gain on sale of discontinued operations $ 2,595 281,990  
Provision for income taxes 1,519 91,691 8,933
Income from discontinued operations, net of taxes $ 1,076 $ 200,301 $ 11,381