Condensed Consolidated Statements of Comprehensive (Loss) Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Statement of Comprehensive Income [Abstract]
Net (loss) income	$ (2,206)	$ 985
Adjustments for changes in:
Foreign currency translation	(2,445)	1,912
Unrecognized employee benefit costs (including effects of foreign currency translation)	93	(149)
Fair value of cash flow hedges	52	178
Reclassification adjustments for items included in net (loss) income
Amortization of unrecognized employee benefit costs	(183)	(195)
Settlements of cash flow hedges	11	(114)
Other comprehensive (loss) income	(2,472)	1,632
Comprehensive (loss) income	(4,678)	2,617
Less: Comprehensive income attributable to noncontrolling interest	307	348
Comprehensive (loss) income attributable to Ampco-Pittsburgh	$ (4,985)	$ 2,269