Restructuring (Schedule of Restructuring Charges) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Restructuring Cost and Reserve [Line Items]
Restructuring expenses, net	$ 52	$ 642
Corporate, Non-Segment
Restructuring Cost and Reserve [Line Items]
Restructuring expenses, net	32	0
Machine Clothing | Operating Segments
Restructuring Cost and Reserve [Line Items]
Restructuring expenses, net	(69)	642
Albany Engineered Composites | Operating Segments
Restructuring Cost and Reserve [Line Items]
Restructuring expenses, net	$ 89	$ 0