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Property Plant and Equipment, Net (Detail) - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Property, Plant and Equipment [Line Items]    
Land $ 16,561 $ 16,561
Buildings 105,935 98,369
Machinery and equipment 689,770 647,961
Furniture and fixtures, and software 90,384 88,539
Leasehold improvements 52,536 49,540
Construction in progress 6,276 13,522
Property, Plant and Equipment, Gross, Total 961,462 914,492
Less: accumulated depreciation 681,641 646,045
Property, plant and equipment, net $ 279,821 $ 268,447