Restructuring (Schedule of Restructuring Charges) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Restructuring Charges [Abstract]
Restructuring expenses, net	$ 710	$ (244)	$ 4,189	$ 1,139
Corporate, Non-Segment [Member]
Restructuring Charges [Abstract]
Restructuring expenses, net	(32)	0	169	(4)
Machine Clothing [Member] | Operating Segments [Member]
Restructuring Charges [Abstract]
Restructuring expenses, net	384	(211)	1,414	1,125
Albany Engineered Composites [Member] | Operating Segments [Member]
Restructuring Charges [Abstract]
Restructuring expenses, net	$ 358	$ (33)	2,606	18
Termination and other costs [Member]
Restructuring Charges [Abstract]
Restructuring expenses, net			4,189	1,095
Termination and other costs [Member] | Corporate, Non-Segment [Member]
Restructuring Charges [Abstract]
Restructuring expenses, net			169	(4)
Termination and other costs [Member] | Machine Clothing [Member] | Operating Segments [Member]
Restructuring Charges [Abstract]
Restructuring expenses, net			1,414	1,081
Termination and other costs [Member] | Albany Engineered Composites [Member] | Operating Segments [Member]
Restructuring Charges [Abstract]
Restructuring expenses, net			2,606	18
Impairment Of Assets [Member]
Restructuring Charges [Abstract]
Restructuring expenses, net			0	44
Impairment Of Assets [Member] | Corporate, Non-Segment [Member]
Restructuring Charges [Abstract]
Restructuring expenses, net			0	0
Impairment Of Assets [Member] | Machine Clothing [Member] | Operating Segments [Member]
Restructuring Charges [Abstract]
Restructuring expenses, net			0	44
Impairment Of Assets [Member] | Albany Engineered Composites [Member] | Operating Segments [Member]
Restructuring Charges [Abstract]
Restructuring expenses, net			$ 0	$ 0