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Segments (Company’s approximate percentage of net sales by geographic region) (Details)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of net sales	100.00%us-gaap_ConcentrationRiskPercentage1	100.00%us-gaap_ConcentrationRiskPercentage1	100.00%us-gaap_ConcentrationRiskPercentage1
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of net sales	74.00%	74.00%	77.00%
Canada
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of net sales	7.00%	8.00%	8.00%
Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of net sales	6.00%	5.00%	4.00%
Asia
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of net sales	6.00%	6.00%	6.00%
Mexico
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of net sales	5.00%	5.00%	4.00%
Other
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of net sales	2.00%	2.00%	1.00%