Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Statement of Comprehensive Income [Abstract]
Net earnings	$ 26.1	$ 14.9	$ 29.4	$ 35.7
Other comprehensive loss, net of tax:
Foreign currency translation loss	(35.6)	(17.7)	(30.7)	(42.7)
Unrecognized post-retirement plan gain	0.2	0.1	0.4	0.6
Unrealized gain (loss) on hedging activities	1.6	1.8	(7.1)	7.5
Total other comprehensive loss, net of tax	(33.8)	(15.8)	(37.4)	(34.6)
Comprehensive loss attributable to Milacron Holdings Corp.	$ (7.7)	$ (0.9)	$ (8.0)	$ 1.1

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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