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Contract Assets - Summary of Changes in Contract Assets (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Change in Contract with Customer, Asset and Liability [Abstract]
Balance at beginning of the period	$ 5,489	$ 5,510	$ 8,486	$ 4,452
Satisfaction of existing contracts	(17,471)	(12,245)	(33,794)	(21,405)
Additional revenue earned on new and existing contracts	18,218	15,963	31,454	26,232
Other, primarily changes in foreign currency exchange rates	251		341	(51)
Balance at end of the period	$ 6,487	$ 9,228	$ 6,487	$ 9,228

X

- Definition

Contract asset net.

+ References

No definition available.

+ Details

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Balance Type:	debit
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X

- Definition

Contract assets additional revenue earned on new and existing contracts.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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X

- Definition

Contract assets other primarily changes in foreign currency exchange rates.

+ References

No definition available.

+ Details

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Namespace Prefix:	ap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Contract assets satisfaction of existing contracts.

+ References

No definition available.

+ Details

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Namespace Prefix:	ap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
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Balance Type:	na
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