Reportable Segments and Revenue Recognition (Schedule of Restructuring Costs by Reporting Segment) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Segment Reporting Information, Additional Information [Abstract]
Restructuring expenses, net	$ (9)	$ 2,837	$ 43	$ 3,479
Corporate, Non-Segment
Segment Reporting Information, Additional Information [Abstract]
Restructuring expenses, net	29	201	60	201
Machine Clothing | Operating Segments
Segment Reporting Information, Additional Information [Abstract]
Restructuring expenses, net	10	388	(58)	1,030
Albany Engineered Composites | Operating Segments
Segment Reporting Information, Additional Information [Abstract]
Restructuring expenses, net	$ (48)	$ 2,248	$ 41	$ 2,248