Reportable Segments (Schedule of Disaggregate MC Segment Revenue by Significant Product or Service) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Disaggregation of Revenue [Line Items]
Net sales	$ 211,999	$ 271,133	$ 673,753	$ 796,454
Machine Clothing [Member]
Disaggregation of Revenue [Line Items]
Net sales	138,747	151,324	428,782	450,673
Machine Clothing [Member] | Americas PMC [Member]
Disaggregation of Revenue [Line Items]
Net sales	70,663	82,763	225,565	239,686
Machine Clothing [Member] | Eurasia PMC [Member]
Disaggregation of Revenue [Line Items]
Net sales	50,923	50,330	150,220	155,849
Machine Clothing [Member] | Engineered Fabrics [Member]
Disaggregation of Revenue [Line Items]
Net sales	$ 17,161	$ 18,231	$ 52,997	$ 55,138