Goodwill and Intangible Assets (Reconciliation of Intangible Assets) (Details) - USD ($) $ in Millions	12 Months Ended
	Jul. 31, 2022	Jul. 31, 2021
Total Net Value
Total net value at the beginning	$ 61.6	$ 67.3
Intangible assets acquired	53.7	0.0
Amortization expense	(9.2)	(8.2)
Foreign currency translation	(6.3)	2.5
Total net value at the end	99.8	61.6
Customer Relationships
Gross Carrying Amount
Gross carrying amount at the beginning	107.5	105.2
Intangible assets acquired	3.2	0.0
Amortization expense	0.0	0.0
Foreign currency translation	(6.1)	2.3
Gross carrying amount at the end	104.6	107.5
Accumulated Amortization
Accumulated amortization at the beginning	(56.4)	(50.0)
Intangible assets acquired	0.0	0.0
Amortization expense	(6.0)	(6.1)
Foreign currency translation	2.1	(0.3)
Accumulated amortization at the ending	(60.3)	(56.4)
Total Net Value
Total net value at the beginning	51.1	55.2
Intangible assets acquired	3.2	0.0
Amortization expense	(6.0)	(6.1)
Foreign currency translation	(4.0)	2.0
Total net value at the end	44.3	51.1
Patents, Trademarks and Technology
Gross Carrying Amount
Gross carrying amount at the beginning	24.3	23.7
Intangible assets acquired	50.5	0.0
Amortization expense	0.0	0.0
Foreign currency translation	(2.9)	0.6
Gross carrying amount at the end	71.9	24.3
Accumulated Amortization
Accumulated amortization at the beginning	(13.8)	(11.6)
Intangible assets acquired	0.0	0.0
Amortization expense	(3.2)	(2.1)
Foreign currency translation	0.6	(0.1)
Accumulated amortization at the ending	(16.4)	(13.8)
Total Net Value
Total net value at the beginning	10.5	12.1
Intangible assets acquired	50.5	0.0
Amortization expense	(3.2)	(2.1)
Foreign currency translation	(2.3)	0.5
Total net value at the end	$ 55.5	$ 10.5