Goodwill and Other Intangible Assets (Reconciliation of Goodwill) (Details) - USD ($) $ in Millions	12 Months Ended
	Jul. 31, 2017	Jul. 31, 2016
Goodwill [Roll Forward]
Beginning Balance	$ 229.3	$ 223.7
Goodwill acquired	6.7	6.3
Foreign exchange translation	2.1	(0.7)
Ending Balance	238.1	229.3
Operating Segments | Engineered Products
Goodwill [Roll Forward]
Beginning Balance	77.3	71.0
Goodwill acquired	6.7	6.3
Foreign exchange translation	0.3	0.0
Ending Balance	84.3	77.3
Operating Segments | Industrial Products
Goodwill [Roll Forward]
Beginning Balance	152.0	152.7
Goodwill acquired	0.0	0.0
Foreign exchange translation	1.8	(0.7)
Ending Balance	$ 153.8	$ 152.0