Name:	ap_LandAndBuildingsHeldAsCollateral
Namespace Prefix:	ap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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Name:	us-gaap_Depreciation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Amount, after accumulated amortization, of right-of-use asset from finance lease.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
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Name:	us-gaap_FinanceLeaseRightOfUseAsset
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Amount of accumulated amortization of right-of-use asset from finance lease.

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-Publisher FASB
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Name:	us-gaap_FinanceLeaseRightOfUseAssetAccumulatedAmortization
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount of amortization expense attributable to right-of-use asset from finance lease.

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Name:	us-gaap_FinanceLeaseRightOfUseAssetAmortization
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

The cash outflow for acquisition of machinery and equipment.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
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-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3213-108585

Name:	us-gaap_PaymentsToAcquireMachineryAndEquipment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

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.

No definition available.