Reportable Segments (Schedule of Restructuring Costs by Reporting Segment) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Segment Reporting Information, Additional Information [Abstract]
Restructuring expenses, net	$ 710	$ (244)	$ 4,189	$ 1,139
Corporate, Non-Segment [Member]
Segment Reporting Information, Additional Information [Abstract]
Restructuring expenses, net	(32)	0	169	(4)
Machine Clothing [Member] | Operating Segments [Member]
Segment Reporting Information, Additional Information [Abstract]
Restructuring expenses, net	384	(211)	1,414	1,125
Albany Engineered Composites [Member] | Operating Segments [Member]
Segment Reporting Information, Additional Information [Abstract]
Restructuring expenses, net	$ 358	$ (33)	$ 2,606	$ 18