Property, Plant and Equipment - Summary of Carrying Values of Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Property, Plant and Equipment [Line Items]
Gross property, plant and equipment	$ 907,562	$ 823,192
Accumulated depreciation	(570,240)	(513,901)
Net property, plant and equipment	337,322	309,291
Land and Land Improvements [Member]
Property, Plant and Equipment [Line Items]
Gross property, plant and equipment	31,963	28,462
Buildings and Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Gross property, plant and equipment	148,598	136,230
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Gross property, plant and equipment	543,594	499,400
Computer Equipment and Software [Member]
Property, Plant and Equipment [Line Items]
Gross property, plant and equipment	136,509	123,909
Construction in Process [Member]
Property, Plant and Equipment [Line Items]
Gross property, plant and equipment	$ 46,898	$ 35,191