Property and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 580,807	$ 570,162
Less accumulated depreciation	(333,400)	(306,166)
Property and equipment, net	247,407	263,996
Land
Property, Plant and Equipment [Line Items]
Property and equipment, gross	21,595	22,765
Building
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 171,406	167,645
Building | Maximum
Property, Plant and Equipment [Line Items]
Property and equipment estimated useful life	30 years
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 287,596	275,688
Machinery and equipment | Minimum
Property, Plant and Equipment [Line Items]
Property and equipment estimated useful life	3 years
Machinery and equipment | Maximum
Property, Plant and Equipment [Line Items]
Property and equipment estimated useful life	7 years
Office equipment and other
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 100,210	$ 104,064
Office equipment and other | Minimum
Property, Plant and Equipment [Line Items]
Property and equipment estimated useful life	3 years
Office equipment and other | Maximum
Property, Plant and Equipment [Line Items]
Property and equipment estimated useful life	10 years