Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Statement of Comprehensive Income [Abstract]
Net income attributable to Park-Ohio Holdings Corp. common shareholders before noncontrolling interest	$ 7.6	$ 9.1
Other comprehensive income (loss), net of tax:
Currency translation	10.2	(1.8)
Pension and other postretirement benefits	0.2	0.5
Total other comprehensive income (loss)	10.4	(1.3)
Total comprehensive income, net of tax	18.0	7.8
Comprehensive loss attributable to noncontrolling interests	0.7	0.5
Comprehensive income attributable to Park-Ohio Holdings Corp. common shareholders	$ 18.7	$ 8.3