Revenue Recognition (Schedule of Disaggregate MC Segment Revenue by Significant Product or Service) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Disaggregation of Revenue [Line Items]
Net sales	$ 253,253	$ 222,141	$ 739,459	$ 636,989
Machine Clothing [Member]
Disaggregation of Revenue [Line Items]
Net sales	$ 158,971	$ 150,694	469,758	$ 440,093
Americas PMC [Member]
Disaggregation of Revenue [Line Items]
Net sales			232,358
Eurasia PMC [Member]
Disaggregation of Revenue [Line Items]
Net sales			176,300
Engineered Fabrics [Member]
Disaggregation of Revenue [Line Items]
Net sales			$ 61,100