Condensed Consolidated Statements Of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jan. 31, 2017	Jan. 31, 2016	Jan. 31, 2017	Jan. 31, 2016
Statement of Comprehensive Income [Abstract]
Net earnings	$ 46.5	$ 38.0	$ 104.5	$ 76.5
Foreign currency translation loss	(8.4)	(18.8)	(20.8)	(29.4)
Net gain (loss) on hedging derivatives, net of deferred taxes of $0.1, $(0.1), $(0.4) and $0.2, respectively	(0.3)	(0.1)	0.7	(0.7)
Pension and postretirement liability adjustment, net of deferred taxes of $(0.8), $9.5, $(1.8) and $10.7, respectively	1.3	(16.3)	3.7	(17.3)
Total comprehensive income	$ 39.1	$ 2.8	$ 88.1	$ 29.1