Document and Entity Information - shares shares in Millions	3 Months Ended
	Mar. 31, 2018	Apr. 30, 2018
Entity Registrant Name	ALBANY INTERNATIONAL CORP /DE/
Entity Central Index Key	0000819793
Document Type	10-Q
Document Period End Date	Mar. 31, 2018
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Document Fiscal Period Focus	Q1
Document Fiscal Year Focus	2018
Common Class A [Member]
Entity Common Stock, Shares Outstanding		29.0
Common Class B [Member]
Entity Common Stock, Shares Outstanding		3.2