Restructuring (Schedule of Restructuring Charges) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Restructuring and other, net
Restructuring expenses, net	$ 3,717	$ 919	$ 13,929	$ 4,058
Termination and Other Costs [Member]
Restructuring and other, net
Restructuring expenses, net			10,704	4,157
Impairment of Plant and Equipment [Member]
Restructuring and other, net
Restructuring expenses, net			$ 3,225	611
Benefit Plan Curtailment/ Settlement [Member]
Restructuring and other, net
Restructuring expenses, net				(710)
Machine Clothing [Member]
Restructuring and other, net
Restructuring expenses, net	$ 3,717	968	$ 13,929	3,127
Machine Clothing [Member] | Termination and Other Costs [Member]
Restructuring and other, net
Restructuring expenses, net			10,704	$ 3,837
Machine Clothing [Member] | Impairment of Plant and Equipment [Member]
Restructuring and other, net
Restructuring expenses, net			$ 3,225
Machine Clothing [Member] | Benefit Plan Curtailment/ Settlement [Member]
Restructuring and other, net
Restructuring expenses, net				$ (710)
Engineered Composites [Member]
Restructuring and other, net
Restructuring expenses, net		$ (49)		931
Engineered Composites [Member] | Termination and Other Costs [Member]
Restructuring and other, net
Restructuring expenses, net				320
Engineered Composites [Member] | Impairment of Plant and Equipment [Member]
Restructuring and other, net
Restructuring expenses, net				$ 611
Engineered Composites [Member] | Benefit Plan Curtailment/ Settlement [Member]
Restructuring and other, net
Restructuring expenses, net