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Accounts Receivable (Narrative) (Details)	9 Months Ended
	Sep. 30, 2021
Receivables [Abstract]
Noncurrent receivables invoice, period	10 years

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- Definition

Receivables, Noncurrent Invoice To Customer, Period

+ References

No definition available.

+ Details

Name:	ain_ReceivablesNoncurrentInvoiceToCustomerPeriod
Namespace Prefix:	ain_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

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- References

No definition available.

+ Details

Name:	us-gaap_ReceivablesAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration