Goodwill and Other Intangible Assets (Details) $ in Millions	6 Months Ended
	Jun. 30, 2018 USD ($)
Goodwill [Line Items]
Goodwill, Acquired During Period	$ (3.2)
Goodwill, Other Increase (Decrease)	14.9
Change in the carrying amount of Goodwill
Goodwill, Beginning Balance	511.8
Goodwill, Ending Balance	493.7
Mobile Industries [Member]
Goodwill [Line Items]
Goodwill, Acquired During Period	3.2
Goodwill, Other Increase (Decrease)	(14.0)
Change in the carrying amount of Goodwill
Goodwill, Beginning Balance	254.3
Goodwill, Ending Balance	237.1
Process Industries [Member]
Goodwill [Line Items]
Goodwill, Acquired During Period	0.0
Goodwill, Other Increase (Decrease)	(0.9)
Change in the carrying amount of Goodwill
Goodwill, Beginning Balance	257.5
Goodwill, Ending Balance	$ 256.6