Consolidated Statements of Shareholders' Equity - USD ($) $ in Millions		Total	Common Stock	Additional Paid-In Capital	Retained Earnings	Treasury Stock	Accumulated Other Comprehensive (Loss) Income	Noncontrolling Interest
Beginning balance (in shares) at Dec. 31, 2018			15,555,275
Beginning balance at Dec. 31, 2018		$ 312.6	$ 15.6	$ 125.7	$ 265.9	$ (67.3)	$ (40.9)	$ 13.6
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive (loss) income		43.6			38.6		3.9	1.1
Stock-based compensation		4.1		4.1
Restricted stock awards issued (in shares)	[1]		266,123
Restricted stock awards issued	[1]	0.1	$ 0.2	(0.1)
Restricted stock cancelled (in shares)			(115,000)
Restricted stock cancelled		0.0	$ (0.1)	0.1
Dividends		(7.0)			(6.3)			(0.7)
Purchase of treasury stock		(3.8)				(3.8)
Ending balance (in shares) at Dec. 31, 2019			15,706,398
Ending balance at Dec. 31, 2019		349.6	$ 15.7	129.8	298.2	(71.1)	(37.0)	14.0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive (loss) income		14.1			(4.5)		18.9	(0.3)
Stock-based compensation		6.1		6.1
Restricted stock awards issued (in shares)			447,393
Restricted stock awards issued		0.0	$ 0.4	(0.4)
Restricted stock cancelled (in shares)			(5,000)
Dividends		(3.2)			(3.2)
Purchase of treasury stock		(8.7)				(8.7)
Ending balance (in shares) at Dec. 31, 2020			16,148,791
Ending balance at Dec. 31, 2020		357.9	$ 16.1	135.5	290.5	(79.8)	(18.1)	13.7
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive (loss) income		(27.1)			(24.8)		(1.1)	(1.2)
Stock-based compensation		6.5		6.5
Restricted stock awards issued (in shares)			202,848
Restricted stock awards issued			$ 0.2	(0.2)
Restricted stock cancelled (in shares)			(11,917)
Dividends		(7.0)			(6.3)			(0.7)
Purchase of treasury stock		(5.5)				(5.5)
Increase in Park-Ohio ownership interest				1.1				(1.1)
Ending balance (in shares) at Dec. 31, 2021			16,339,722
Ending balance at Dec. 31, 2021		$ 324.8	$ 16.3	$ 142.9	$ 259.4	$ (85.3)	$ (19.2)	$ 10.7

[1] (1) - Includes 52,173 restricted share units converted to common stock.