Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Statement of Comprehensive Income [Abstract]
Net (loss) earnings	$ (24.6)	$ 9.8
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	18.8	10.0
Unrecognized post-retirement plan loss	(0.1)	(0.1)
Unrealized gain on hedging activities	0.1	0.6
Total other comprehensive income, net of tax	18.8	10.5
Comprehensive loss attributable to Milacron Holdings Corp.	$ (5.8)	$ 20.3