Consolidated Statements of Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Income Statement [Abstract]
Net sales	$ 1,599.1	$ 1,656.2	$ 1,659.7
Cost of sales	1,327.9	1,374.8	1,388.3
Selling, general and administrative expenses	189.6	187.4	181.5
Restructuring and other special charges	6.4	4.9	6.6
Asset impairment charges	8.9	0.0	0.0
Gains on sales of assets, net	0.0	(2.5)	(0.8)
Other expense	0.0	5.0	0.0
Operating income	66.3	86.6	84.1
Other components of pension and other postretirement benefits income, net	7.0	5.2	2.5
Interest expense, net	(47.5)	(47.4)	(45.1)
Loss on extinguishment of debt	(2.0)	0.0	0.0
Income from continuing operations before income taxes	23.8	44.4	41.5
Income tax expense	(2.8)	(4.9)	(8.5)
Income from continuing operations	21.0	39.5	33.0
Loss attributable to noncontrolling interests	3.8	2.7	1.0
Income from continuing operations attributable to ParkOhio common shareholders	24.8	42.2	34.0
Loss from discontinued operations, net of tax	(1.0)	(10.4)	(26.2)
Net income (loss) attributable to ParkOhio common shareholders	$ 23.8	$ 31.8	$ 7.8
Basic:
Continuing operations (in dollars per share)	$ 1.80	$ 3.27	$ 2.76
Discontinued Operations (in dollars per share)	(0.07)	(0.81)	(2.13)
Total (in dollars per share)	1.73	2.46	0.63
Diluted:
Continuing operations (in dollars per share)	1.77	3.19	2.72
Discontinued Operations (in dollars per share)	(0.07)	(0.79)	(2.10)
Total (in dollars per share)	$ 1.70	$ 2.40	$ 0.62
Weighted-average shares used to compute earnings (loss) per share:
Basic (in shares)	13,768,371	12,902,490	12,295,999
Diluted (in shares)	13,973,125	13,239,608	12,510,901