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Restructuring (Narrative) (Details) $ in Thousands | Jun. 30, 2017 USD ($)
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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

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- Definition Accrued restructuring costs expected to be paid within one year. + References No definition available. + Details
Name: | ain_AccruedRestructuringCostsExpectedToBePaidWithinOneYear
Namespace Prefix: | ain_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Accrued restructuring costs expected to be paid in year two. + References No definition available. + Details
Name: | ain_AccruedRestructuringCostsExpectedToBePaidYearTwo
Namespace Prefix: | ain_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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