Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Statement of Comprehensive Income [Abstract]
Net income	$ 48.7	$ 46.9	$ 43.9
Other comprehensive income (loss):
Foreign currency translation (loss)	(11.8)	(7.9)	(2.6)
Pension and postretirement benefit adjustments, net of tax	(4.2)	(9.5)	12.8
Total other comprehensive (loss) income	(16.0)	(17.4)	10.2
Total comprehensive income, net of tax	32.7	29.5	54.1
Comprehensive income attributable to noncontrolling interest	(0.6)	(1.3)	(0.5)
Comprehensive income attributable to ParkOhio common shareholders	$ 32.1	$ 28.2	$ 53.6