Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Income Statement [Abstract]
Net sales	$ 301.3	$ 295.9	$ 580.5	$ 576.2
Cost of sales	197.1	193.7	378.4	375.1
Manufacturing margins	104.2	102.2	202.1	201.1
Operating expenses:
Selling, general and administrative expenses	72.1	69.9	138.3	135.3
Amortization expense	9.2	11.1	18.6	22.0
(Gain) loss on currency translation	(1.3)	(4.2)	9.9	2.3
Other expense, net	4.6	0.6	8.3	1.4
Total operating expenses	84.6	77.4	175.1	161.0
Operating earnings	19.6	24.8	27.0	40.1
Interest expense, net	18.4	18.7	36.8	37.6
Loss on debt extinguishment	22.2	2.9	22.2	3.4
(Loss) earnings before income taxes	(21.0)	3.2	(32.0)	(0.9)
Income tax expense	6.2	5.3	11.1	9.5
Net loss	(27.2)	(2.1)	(43.1)	(10.4)
Less: Net loss attributable to the noncontrolling interest	0.0	0.0	0.0	0.1
Net loss attributable to Milacron Holdings Corp.	$ (27.2)	$ (2.1)	$ (43.1)	$ (10.3)
Loss per share:
Basic (in dollars per share)	$ (0.51)	$ (0.04)	$ (0.82)	$ (0.20)
Diluted (in dollars per share)	$ (0.51)	$ (0.04)	$ (0.82)	$ (0.20)