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Contingencies (Narrative) (Details) - Asbestos Litigation [Member] $ in Thousands | Sep. 30, 2017 USD ($) claims
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Loss Contingencies [Line Items] |
Total resolved claims, by means of settlement or dismissal | claims | 37,564
Total cost of resolution | $ | $ 10,200
Resolution costs paid by insurance carrier | 100.00%
Confirmed insurance coverage | $ | $ 140,000
Brandon Drying Fabrics, Inc. [Member] |
Loss Contingencies [Line Items] |
Total resolved claims, by means of settlement or dismissal | claims | 7,706
Resolution costs paid by insurance carrier | 100.00%

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- Definition Loss Contingency, Amount Of Estimated Recovery From Third Party . + References No definition available. + Details
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Namespace Prefix: | ain_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Loss Contingency, Claims Settled and Dismissed. + References No definition available. + Details
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Namespace Prefix: | ain_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Loss Contingency, Cost Of Resolution. + References No definition available. + Details
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Namespace Prefix: | ain_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Loss Contingency, Cost Of Resolution Paid By Insurer. + References No definition available. + Details
Name: | ain_LossContingencyCostOfResolutionPaidByInsurer
Namespace Prefix: | ain_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=ain_BrandonDryingFabricsIncMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |