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Restructuring (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		45 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020
Restructuring Cost and Reserve [Line Items]
Restructuring expenses, net	$ 710	$ (244)	$ 4,189	$ 1,139
Restructuring expense					$ 13,300
Restructuring reserve, current	2,800		2,800		2,800
Restructuring reserve, noncurrent	300		300		$ 300
Operating Segments [Member] \| Albany Engineered Composites [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring expenses, net	$ 358	$ (33)	2,606	$ 18
Operating Segments [Member] \| Albany Engineered Composites [Member] \| Special Termination Benefits [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring expenses, net			$ 2,600