Condensed Consolidated Statements of Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Income Statement [Abstract]
Net sales	$ 417.6	$ 418.8	$ 1,267.8	$ 1,270.4
Cost of sales	345.3	348.8	1,050.9	1,063.1
Selling, general and administrative expenses	47.8	43.0	142.3	135.1
Restructuring, acquisition-related and other special charges	0.9	0.0	2.4	6.6
Gains on sales of assets	0.0	0.0	0.0	(0.8)
Operating income	23.6	27.0	72.2	66.4
Other components of pension and other postretirement benefits income, net	1.1	0.6	3.8	1.9
Interest expense, net	(12.1)	(11.6)	(36.0)	(33.4)
Income from continuing operations before income taxes	12.6	16.0	40.0	34.9
Income tax benefit (expense)	0.6	(3.8)	(5.3)	(8.5)
Income from continuing operations	13.2	12.2	34.7	26.4
Loss attributable to noncontrolling interests	0.5	0.3	1.9	0.7
Income from continuing operations attributable to Park-Ohio Holdings Corp. common shareholders	13.7	12.5	36.6	27.1
Loss from discontinued operations, net of tax (Note 5)	(3.9)	(1.4)	(5.3)	(4.8)
Net income attributable to Park-Ohio Holdings Corp. common shareholders	$ 9.8	$ 11.1	$ 31.3	$ 22.3
Basic:
Continuing operations (in dollars per share)	$ 1.05	$ 1.01	$ 2.88	$ 2.22
Discontinued operations (in dollars per share)	(0.30)	(0.11)	(0.42)	(0.39)
Total (in dollars per share)	0.75	0.90	2.46	1.83
Diluted:
Continuing operations (in dollars per share)	1.02	0.99	2.81	2.19
Discontinued operations (in dollars per share)	(0.29)	(0.11)	(0.41)	(0.39)
Total (in dollars per share)	$ 0.73	$ 0.88	$ 2.40	$ 1.80