Property and Equipment Property and Equipment (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Property and equipment, Gross	$ 625,618	$ 626,020
Less accumulated depreciation	(374,197)	(370,115)
Property and equipment, net	251,421	255,905
Land
Property, Plant and Equipment [Line Items]
Property and equipment, Gross	23,837	21,511
Building
Property, Plant and Equipment [Line Items]
Property and equipment, Gross	$ 167,690	167,852
Building | Maximum
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	30 years
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property and equipment, Gross	$ 306,142	307,530
Machinery and equipment | Minimum
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	3 years
Machinery and equipment | Maximum
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	7 years
Office equipment and other
Property, Plant and Equipment [Line Items]
Property and equipment, Gross	$ 127,949	$ 129,127
Office equipment and other | Minimum
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	3 years
Office equipment and other | Maximum
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	10 years