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Accounts Receivable (Narrative) (Details) | 6 Months Ended
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Jun. 30, 2020
Receivables [Abstract] |
Construction receivables, to be collected after year one, interest rate | 2.00%
Noncurrent receivables invoice terms | over a 10-year

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- Definition Noncurrent receivables invoice terms. + References No definition available. + Details
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Namespace Prefix: | ain_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Rate of interest on amount billed to customer under long-term contract or program to be collected after next fiscal year following current fiscal year. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 910 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=119991564&loc=SL119991595-234733 + Details
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Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
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Balance Type: | na
Period Type: | duration