Consolidated Statements of Operations - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income Statement [Abstract]
Net sales	$ 1,656.2	$ 1,659.7	$ 1,492.9
Cost of sales	1,374.8	1,388.3	1,282.4
Selling, general and administrative expenses	187.4	181.5	162.2
Restructuring and other special charges	4.9	6.6	17.3
Gains on sales of assets, net	(2.5)	(0.8)	(2.4)
Other expense	5.0	0.0	0.0
Operating income	86.6	84.1	33.4
Other components of pension and other postretirement benefits income, net	5.2	2.5	11.1
Interest expense, net	(47.4)	(45.1)	(33.8)
Income from continuing operations before income taxes	44.4	41.5	10.7
Income tax (expense) benefit	(4.9)	(8.5)	0.7
Income from continuing operations	39.5	33.0	11.4
Loss (income) attributable to noncontrolling interest	2.7	1.0	(1.3)
Income from continuing operations attributable to ParkOhio common shareholders	42.2	34.0	10.1
Loss from discontinued operations, net of tax (Note 4)	(10.4)	(26.2)	(24.3)
Net income (loss) attributable to ParkOhio common shareholders	$ 31.8	$ 7.8	$ (14.2)
Basic:
Continuing operations (in dollars per share)	$ 3.27	$ 2.76	$ 0.83
Discontinued Operations (in dollars per share)	(0.81)	(2.13)	(2.01)
Total (in dollars per share)	2.46	0.63	(1.17)
Diluted:
Continuing operations (in dollars per share)	3.19	2.72	0.83
Discontinued Operations (in dollars per share)	(0.79)	(2.10)	(1.99)
Total (in dollars per share)	$ 2.40	$ 0.62	$ (1.16)
Weighted-average shares used to compute earnings (loss) per share:
Basic (in shares)	12,902,490	12,295,999	12,091,712
Diluted (in shares)	13,239,608	12,510,901	12,192,949