Condensed Consolidated Statements of Shareholders' Equity (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021
Common Stock [Member]
Issuance of common stock tax benefits	$ 0	$ 0
Additional Paid-in Capital [Member]
Issuance of common stock tax benefits	$ 0	$ 0

Excess tax benefits on the issuance of common stock.

No definition available.

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