Consolidated Statements of Comprehensive Loss - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Statement of Comprehensive Income [Abstract]
Net loss	$ (38.8)	$ (14.9)	$ (24.7)
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	(59.1)	(49.1)	4.0
Unrecognized postretirement plan gain (loss)	1.0	(4.1)	(1.0)
Unrealized gain (loss) on hedging activities	3.1	(1.3)	(1.8)
Total other comprehensive loss, net of tax	(55.0)	(54.5)	1.2
Comprehensive loss	(93.8)	(69.4)	(23.5)
Less: Comprehensive loss attributable to noncontrolling interest	0.0	0.1	0.1
Comprehensive loss attributable to Milacron Holdings Corp.	$ (93.8)	$ (69.3)	$ (23.4)