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Goodwill and Other Intangible Assets (Narrative) (Details) $ in Thousands | 9 Months Ended
--- | ---
Sep. 30, 2017 USD ($)
Goodwill and Intangible Assets Disclosure [Abstract] |
Write-off of intangibles | $ 4,100

X
- Definition Write-off of intangibles. + References No definition available. + Details
Name: | ain_WriteoffOfIntangibles
Namespace Prefix: | ain_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration