Goodwill and Other Intangible Assets (Reconciliation of Goodwill) (Details) - USD ($) $ in Millions	12 Months Ended
	Jul. 31, 2018	Jul. 31, 2017
Goodwill [Roll Forward]
Beginning Balance	$ 238.1	$ 229.3
Goodwill acquired	0.6	6.7
Foreign exchange translation	(0.3)	2.1
Ending Balance	238.4	238.1
Operating Segments | Engineered Products
Goodwill [Roll Forward]
Beginning Balance	84.3	77.3
Goodwill acquired	0.6	6.7
Foreign exchange translation	0.0	0.3
Ending Balance	84.9	84.3
Operating Segments | Industrial Products
Goodwill [Roll Forward]
Beginning Balance	153.8	152.0
Goodwill acquired	0.0	0.0
Foreign exchange translation	(0.3)	1.8
Ending Balance	$ 153.5	$ 153.8