Post Employment Plans - Schedule of Defined Benefit Plan Amounts Recognized in Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Jun. 27, 2015
Postemployment Benefits [Abstract]
AOCI pension and other postretirement benefit plans	$ 1.3	$ (9.5)	$ (2.9)	$ (8.2)	[1]

[1] Includes Omega activity from March 30, 2015 to June 27, 2015