Restructuring (Schedule of Restructuring Charges) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Restructuring and other, net
Restructuring and other, net	$ 25,108	$ 7,061	$ 9,317
Termination and Other Costs [Member]
Restructuring and other, net
Restructuring and other, net	26,290	7,766	7,371
Impairment of Plant and Equipment [Member]
Restructuring and other, net
Restructuring and other, net	88	(705)	1,750
Benefit Plan Curtailment/ Settlement [Member]
Restructuring and other, net
Restructuring and other, net	(1,270)		196
Machine Clothing [Member]
Restructuring and other, net
Restructuring and other, net	24,568	7,386	5,680
Machine Clothing [Member] | Termination and Other Costs [Member]
Restructuring and other, net
Restructuring and other, net	25,838	7,386	5,484
Machine Clothing [Member] | Impairment of Plant and Equipment [Member]
Restructuring and other, net
Restructuring and other, net
Machine Clothing [Member] | Benefit Plan Curtailment/ Settlement [Member]
Restructuring and other, net
Restructuring and other, net	(1,270)		196
Engineered Composites [Member]
Restructuring and other, net
Restructuring and other, net	540		57
Engineered Composites [Member] | Termination and Other Costs [Member]
Restructuring and other, net
Restructuring and other, net	452		57
Engineered Composites [Member] | Impairment of Plant and Equipment [Member]
Restructuring and other, net
Restructuring and other, net	88
Engineered Composites [Member] | Benefit Plan Curtailment/ Settlement [Member]
Restructuring and other, net
Restructuring and other, net
Unallocated Expenses [Member]
Restructuring and other, net
Restructuring and other, net		(325)	3,580
Unallocated Expenses [Member] | Termination and Other Costs [Member]
Restructuring and other, net
Restructuring and other, net		380	1,830
Unallocated Expenses [Member] | Impairment of Plant and Equipment [Member]
Restructuring and other, net
Restructuring and other, net		(705)	1,750
Unallocated Expenses [Member] | Benefit Plan Curtailment/ Settlement [Member]
Restructuring and other, net
Restructuring and other, net