Restructuring (Narrative) (Details) $ in Thousands	Jun. 30, 2017 USD ($)
Restructuring and Related Activities [Abstract]
Accrued restructuring costs expected to be paid within one year	$ 5,000
Accrued restructuring costs expected to be paid in year two	$ 400

Accrued restructuring costs expected to be paid within one year.

No definition available.

Name:	ain_AccruedRestructuringCostsExpectedToBePaidWithinOneYear
Namespace Prefix:	ain_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant