Reportable Segments (Schedule of Disaggregate MC Segment Revenue by Significant Product or Service) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Disaggregation of Revenue [Line Items]
Net sales	$ 273,949	$ 255,374	$ 525,321	$ 478,977
Machine Clothing [Member]
Disaggregation of Revenue [Line Items]
Net sales	155,016	161,784	299,349	303,557
Americas PMC [Member]
Disaggregation of Revenue [Line Items]
Net sales	81,583	82,197	156,923	149,826
Eurasia PMC [Member]
Disaggregation of Revenue [Line Items]
Net sales	54,081	59,543	105,519	113,354
Engineered Fabrics [Member]
Disaggregation of Revenue [Line Items]
Net sales	$ 19,352	$ 20,044	$ 36,907	$ 40,377