Reporting Segments and Related Information - Major Customers & Products (Details)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Revenue from External Customer [Line Items]
Percentage of net sales	10.00%
Sales Revenue, Goods, Net [Member] | Turbochargers [Member]
Revenue from External Customer [Line Items]
Concentration Risk, Percentage	28.00%	26.00%	26.00%
Sales Revenue, Goods, Net [Member] | Volkswagen [Member]
Revenue from External Customer [Line Items]
Concentration Risk, Percentage	17.00%	16.00%	17.00%
Sales Revenue, Goods, Net [Member] | Ford [Member]
Revenue from External Customer [Line Items]
Concentration Risk, Percentage	13.00%	14.00%	13.00%