Supplemental Balance Sheet Information - Property, Plant and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 332,136	$ 353,722
Less – Accumulated depreciation	(187,303)	(185,509)
Property, Plant and Equipment, Net	144,833	168,213
Depreciation	30,600	30,200	$ 28,000
Land and land improvements
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	10,348	12,021
Buildings and improvements
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 55,981	62,548
Buildings and improvements | Minimum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives (Years)	5 years
Buildings and improvements | Maximum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives (Years)	40 years
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 173,898	185,003
Machinery and equipment | Minimum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives (Years)	4 years
Machinery and equipment | Maximum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives (Years)	10 years
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 30,048	27,115
Furniture and fixtures | Minimum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives (Years)	3 years
Furniture and fixtures | Maximum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives (Years)	10 years
Autos and trucks
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 50,200	51,635
Autos and trucks | Minimum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives (Years)	3 years
Autos and trucks | Maximum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives (Years)	10 years
Construction in progress
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 11,661	$ 15,400