Condensed Consolidated Statements of Income (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Income Statement [Abstract]
Net sales	$ 423.5	$ 357.7
Cost of sales	356.3	308.8
Selling, general and administrative expenses	45.3	40.2
Restructuring and other special charges	2.5	3.3
Gain on sale of assets	(0.8)	0.0
Operating income	20.2	5.4
Other components of pension income and other postretirement benefits expense, net	0.7	2.8
Interest expense, net	(10.7)	(7.1)
Income from continuing operations before income taxes	10.2	1.1
Income tax (expense) benefit	(2.6)	2.8
Income from continuing operations	7.6	3.9
Income attributable to noncontrolling interests	(0.1)	(0.2)
Income from continuing operations attributable to Park-Ohio Holdings Corp. common shareholders	7.5	3.7
(Loss) income from discontinued operations, net of tax (Note 5)	(1.7)	2.4
Net income attributable to Park-Ohio Holdings Corp. common shareholders	$ 5.8	$ 6.1
Basic:
Continuing operations (in dollars per share)	$ 0.61	$ 0.31
Discontinued operations (in dollars per share)	(0.14)	0.20
Total (in dollars per share)	0.47	0.51
Diluted:
Continuing operations (in dollars per share)	0.61	0.30
Discontinued operations (in dollars per share)	(0.14)	0.20
Total (in dollars per share)	$ 0.47	$ 0.50