Condensed Consolidated Statements of Income (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Income Statement [Abstract]
Net sales	$ 405.4	$ 417.6
Cost of sales	337.3	346.2
Selling, general and administrative expenses	48.2	47.1
Restructuring and other special charges	1.0	0.3
Operating income	18.9	24.0
Other components of pension and other postretirement benefits income, net	1.8	1.3
Interest expense, net	(11.0)	(11.9)
Income from continuing operations before income taxes	9.7	13.4
Income tax expense	(1.9)	(3.3)
Income from continuing operations	7.8	10.1
Loss attributable to noncontrolling interests	0.7	0.5
Income from continuing operations attributable to Park-Ohio Holdings Corp. common shareholders	8.5	10.6
Loss from discontinued operations, net of tax	(0.2)	(1.0)
Net income attributable to Park-Ohio Holdings Corp. common shareholders	$ 8.3	$ 9.6
Basic:
Continuing operations (in dollars per share)	$ 0.63	$ 0.85
Discontinued operations (in dollars per share)	(0.01)	(0.08)
Total (in dollars per share)	0.62	0.77
Diluted:
Continuing operations (in dollars per share)	0.61	0.83
Discontinued operations (in dollars per share)	(0.01)	(0.08)
Total (in dollars per share)	$ 0.60	$ 0.75