Restructuring (Schedule of Restructuring Charges) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Restructuring and other, net
Restructuring and other, net	$ 2,256	$ 2,739	$ 27,213	$ 6,149
Termination and Other Costs [Member]
Restructuring and other, net
Restructuring and other, net			27,289	6,695
Impairment of Plant and Equipment [Member]
Restructuring and other, net
Restructuring and other, net			88	(546)
Benefit Plan Curtailment/ Settlement [Member]
Restructuring and other, net
Restructuring and other, net			(164)
Operating Segments [Member] | Machine Clothing [Member]
Restructuring and other, net
Restructuring and other, net	2,250	2,739	26,673	6,315
Operating Segments [Member] | Machine Clothing [Member] | Termination and Other Costs [Member]
Restructuring and other, net
Restructuring and other, net			26,837	6,315
Operating Segments [Member] | Machine Clothing [Member] | Impairment of Plant and Equipment [Member]
Restructuring and other, net
Restructuring and other, net
Operating Segments [Member] | Machine Clothing [Member] | Benefit Plan Curtailment/ Settlement [Member]
Restructuring and other, net
Restructuring and other, net			(164)
Operating Segments [Member] | Engineered Composites [Member]
Restructuring and other, net
Restructuring and other, net	6		540
Operating Segments [Member] | Engineered Composites [Member] | Termination and Other Costs [Member]
Restructuring and other, net
Restructuring and other, net			452
Operating Segments [Member] | Engineered Composites [Member] | Impairment of Plant and Equipment [Member]
Restructuring and other, net
Restructuring and other, net			88
Operating Segments [Member] | 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				(166)
Unallocated Expenses [Member] | Termination and Other Costs [Member]
Restructuring and other, net
Restructuring and other, net				380
Unallocated Expenses [Member] | Impairment of Plant and Equipment [Member]
Restructuring and other, net
Restructuring and other, net				(546)
Unallocated Expenses [Member] | Benefit Plan Curtailment/ Settlement [Member]
Restructuring and other, net
Restructuring and other, net