Restructuring (Schedule of Restructuring Charges) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Restructuring and other, net
Restructuring expenses, net	$ 1,211	$ 1,957	$ 10,212	$ 3,139
Termination and Other Costs [Member]
Restructuring and other, net
Restructuring expenses, net			$ 10,212	3,189
Impairment of Plant and Equipment [Member]
Restructuring and other, net
Restructuring expenses, net				660
Benefit Plan Curtailment/ Settlement [Member]
Restructuring and other, net
Restructuring expenses, net				(710)
Machine Clothing [Member]
Restructuring and other, net
Restructuring expenses, net	$ 1,211	1,297	$ 10,212	2,159
Machine Clothing [Member] | Termination and Other Costs [Member]
Restructuring and other, net
Restructuring expenses, net			$ 10,212	$ 2,869
Machine Clothing [Member] | Impairment of Plant and Equipment [Member]
Restructuring and other, net
Restructuring expenses, net
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		$ 660		980
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				$ 660
Engineered Composites [Member] | Benefit Plan Curtailment/ Settlement [Member]
Restructuring and other, net
Restructuring expenses, net