Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Statement of Comprehensive Income [Abstract]
Net income attributable to Park-Ohio Holdings Corp. common shareholders before noncontrolling interest	$ 9.1	$ 5.9
Other comprehensive (loss) income, net of tax:
Currency translation	(1.8)	3.3
Foreign currency forward contracts	0.0	(0.2)
Pension and other postretirement benefits	0.5	2.0
Total other comprehensive (loss) income	(1.3)	5.1
Total comprehensive income, net of tax	7.8	11.0
Comprehensive loss (income) attributable to noncontrolling interests	0.5	(0.1)
Comprehensive income attributable to Park-Ohio Holdings Corp. common shareholders	$ 8.3	$ 10.9