Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Statement of Comprehensive Income [Abstract]
Net income	$ 9.0	$ 12.6	$ 11.7	$ 23.7
Other comprehensive income:
Foreign currency translation gain (loss)	(6.5)	2.7	(3.9)	(2.6)
Pension and other postretirement benefit adjustments, net of tax	0.2	0.1	0.4	0.3
Total other comprehensive income (loss)	(6.3)	2.8	(3.5)	(2.3)
Total comprehensive income, net of tax	2.7	15.4	8.2	21.4
Comprehensive income attributable to noncontrolling interest	0.0	(0.2)	0.0	(0.5)
Comprehensive income attributable to ParkOhio common shareholders	$ 2.7	$ 15.2	$ 8.2	$ 20.9