Reportable Segments (Schedule of Restructuring Costs by Reporting Segment) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Restructuring expense
Restructuring expense	$ 1,211	$ 1,957	$ 10,212	$ 3,139
Machine Clothing [Member]
Restructuring expense
Restructuring expense	$ 1,211	1,297	$ 10,212	2,159
Engineered Composites [Member]
Restructuring expense
Restructuring expense		$ 660		$ 980