Amount paid to terminate agreement.

No definition available.

Name:	ain_AmountPaidToTerminateAgreement
Namespace Prefix:	ain_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount received from terminate agreement.

+ References

No definition available.

+ Details

Name:	ain_AmountReceivedFromTerminateAgreement
Namespace Prefix:	ain_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Covenant, Maximum Leverage Ratio.

+ References

No definition available.

+ Details

Name:	ain_CovenantMaximumLeverageRatio
Namespace Prefix:	ain_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

- Definition

Covenant, Minimum Interest Coverage Ratio.

+ References

No definition available.

+ Details

Name:	ain_CovenantMinimumInterestCoverageRatio
Namespace Prefix:	ain_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

- Definition

The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate.

+ References

No definition available.

+ Details

Name:	ain_DebtInstrumentVariableRateBasis
Namespace Prefix:	ain_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

+ References

No definition available.

+ Details

Name:	ain_DerivativesNotionalAmount
Namespace Prefix:	ain_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Interest Coverage Ratio.

+ References

No definition available.

+ Details

Name:	ain_InterestCoverageRatio
Namespace Prefix:	ain_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

- Definition

Leverage Ratio.

+ References

No definition available.

+ Details

Name:	ain_LeverageRatio
Namespace Prefix:	ain_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- 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

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

- Definition

Fixed interest rate related to the interest rate derivative.

+ References

No definition available.

+ Details

Name:	us-gaap_DerivativeFixedInterestRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(16))
-URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_LineOfCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=us-gaap_InterestRateSwapMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
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Financial Instruments (Narrative) (Details)	6 Months Ended
Financial Instruments (Narrative) (Details)	Jun. 30, 2020 USD ($)	Mar. 16, 2020 USD ($)	Nov. 28, 2017 USD ($)	Nov. 27, 2017 USD ($)	Nov. 07, 2017 USD ($)	May 06, 2016 USD ($)	Apr. 08, 2016 USD ($)
Debt Instrument [Line Items]
Minimum interest coverage ratio required	3.00
Leverage ratio	1.48
Interest coverage ratio	14.51
Maximum leverage ratio allowed	3.50
Line of Credit [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity					$ 685,000,000		$ 550,000,000
Long-term line of credit	$ 435,000,000
Debt instrument, basis spread on variable rate	1.375%
Line of credit facility, remaining borrowing capacity	$ 250,000,000
Line of Credit [Member] \| Interest Rate Swap [Member]
Debt Instrument [Line Items]
Line of credit facility, current borrowing capacity				$ 300,000,000		$ 120,000,000
Amount received from terminate agreement				$ 6,300,000
Amount paid to terminate agreement						$ 5,200,000
Notional amount		$ 350,000,000	$ 350,000,000
Derivative, fixed interest rate		20.00%	2.11%
LIBOR rate		3.485%
Line of Credit [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	1.75%
Line of Credit [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	1.25%