Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Jul. 31, 2019	Jul. 31, 2018	Jul. 31, 2017
Statement of Comprehensive Income [Abstract]
Net earnings	$ 267.2	$ 180.3	$ 232.8
Other comprehensive income (loss):
Foreign currency translation (loss) income	(26.6)	(7.3)	30.5
Pension liability adjustment, net of deferred taxes of $5.0, $(4.7) and $(11.2), respectively	(16.1)	12.2	20.7
(Losses) gains on hedging derivatives, net of deferred taxes of $0.1, $(1.1) and $1.2, respectively	(0.5)
(Losses) gains on hedging derivatives, net of deferred taxes of $0.1, $(1.1) and $1.2, respectively		2.3	(2.6)
Reclassification of losses (gains) on hedging derivatives to net income, net of taxes of $0, $0 and $0, respectively	0.1
Reclassification of losses (gains) on hedging derivatives to net income, net of taxes of $0, $0 and $0, respectively		0.0	0.0
Total derivatives	(0.4)
Total derivatives		2.3	(2.6)
Net other comprehensive (loss) income	(43.1)	7.2	48.6
Comprehensive income	$ 224.1	$ 187.5	$ 281.4