Reportable Segments and Geographic Data (Schedule of Restructuring Costs by Reporting Segment) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Restructuring expenses, net
Consolidated total	$ 5,736	$ 2,905	$ 15,570
Corporate expenses
Restructuring expenses, net
Consolidated total	169	(57)	244
Machine Clothing | Operating segments
Restructuring expenses, net
Consolidated total	2,746	1,129	12,278
Albany Engineered Composites | Operating segments
Restructuring expenses, net
Consolidated total	$ 2,821	$ 1,833	$ 3,048