Segment Information (Details 3) (Net sales, Customer concentration)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Boeing company and its subcontractors
Segment information
Concentration percentage (as a percent)	34.00%	29.00%	30.00%
Boeing company and its subcontractors | Composite Materials
Segment information
Concentration percentage (as a percent)	24.00%	19.00%	20.00%
Boeing company and its subcontractors | Engineered Products
Segment information
Concentration percentage (as a percent)	68.00%	66.00%	64.00%
Airbus Group and its subcontractors
Segment information
Concentration percentage (as a percent)	29.00%	28.00%	27.00%
Airbus Group and its subcontractors | Composite Materials
Segment information
Concentration percentage (as a percent)	35.00%	34.00%	33.00%