Reportable Segments (Schedule of Restructuring Costs by Reporting Segment) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Restructuring expense
Restructuring expense	$ 3,717	$ 919	$ 13,929	$ 4,058
Machine Clothing [Member]
Restructuring expense
Restructuring expense	$ 3,717	968	$ 13,929	3,127
Engineered Composites [Member]
Restructuring expense
Restructuring expense		$ (49)		$ 931