Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jan. 31, 2024	Jan. 31, 2023	Jan. 31, 2024	Jan. 31, 2023
Accumulated Other Comprehensive Income (Loss), Net of Tax
Beginning balance	$ 1,336.1	$ 1,154.8	$ 1,320.7	$ 1,133.2
Other comprehensive income (loss) before reclassifications and tax	20.0	61.2	(17.4)	25.6
Tax benefit	0.1	1.0	0.0	(0.1)
Other comprehensive income (loss) before reclassifications, net of tax	20.1	62.2	(17.4)	25.5
Reclassifications, before tax	(1.3)	(3.7)	0.8	(0.3)
Tax benefit	0.3	1.2	(0.1)	0.2
Reclassifications, net of tax	(1.0)	(2.5)	0.7	(0.1)
Net other comprehensive income (loss)	19.1	59.7	(16.7)	25.4
Ending balance	1,375.8	1,194.2	1,375.8	1,194.2
Total
Accumulated Other Comprehensive Income (Loss), Net of Tax
Beginning balance	(208.3)	(239.9)	(172.5)	(205.6)
Net other comprehensive income (loss)	19.1	59.7	(16.7)	25.4
Ending balance	(189.2)	(180.2)	(189.2)	(180.2)
Foreign Currency Translation Adjustment
Accumulated Other Comprehensive Income (Loss), Net of Tax
Beginning balance	(147.2)	(183.7)	(109.6)	(143.6)
Other comprehensive income (loss) before reclassifications and tax	20.9	65.3	(16.7)	25.2
Tax benefit	0.0	0.0	0.0	0.0
Other comprehensive income (loss) before reclassifications, net of tax	20.9	65.3	(16.7)	25.2
Reclassifications, before tax	0.0	0.0	0.0	0.0
Tax benefit	0.0	0.0	0.0	0.0
Reclassifications, net of tax	0.0	0.0	0.0	0.0
Net other comprehensive income (loss)	20.9	65.3	(16.7)	25.2
Ending balance	(126.3)	(118.4)	(126.3)	(118.4)
Pension Benefits
Accumulated Other Comprehensive Income (Loss), Net of Tax
Beginning balance	(66.2)	(66.3)	(67.2)	(67.5)
Other comprehensive income (loss) before reclassifications and tax	0.0	0.0	0.0	0.0
Tax benefit	0.0	0.0	0.0	0.0
Other comprehensive income (loss) before reclassifications, net of tax	0.0	0.0	0.0	0.0
Reclassifications, before tax	(0.2)	(1.0)	1.0	0.6
Tax benefit	0.0	0.3	(0.2)	(0.1)
Reclassifications, net of tax	(0.2)	(0.7)	0.8	0.5
Net other comprehensive income (loss)	(0.2)	(0.7)	0.8	0.5
Ending balance	(66.4)	(67.0)	(66.4)	(67.0)
Derivative Financial Instruments
Accumulated Other Comprehensive Income (Loss), Net of Tax
Beginning balance	5.1	10.1	4.3	5.5
Other comprehensive income (loss) before reclassifications and tax	(0.9)	(4.1)	(0.7)	0.4
Tax benefit	0.1	1.0	0.0	(0.1)
Other comprehensive income (loss) before reclassifications, net of tax	(0.8)	(3.1)	(0.7)	0.3
Reclassifications, before tax	(1.1)	(2.7)	(0.2)	(0.9)
Tax benefit	0.3	0.9	0.1	0.3
Reclassifications, net of tax	(0.8)	(1.8)	(0.1)	(0.6)
Net other comprehensive income (loss)	(1.6)	(4.9)	(0.8)	(0.3)
Ending balance	3.5	5.2	3.5	5.2
Accumulated Defined Benefit Plans Adjustment, Foreign Currency Translation Attributable To Parent | Scenario, Adjustment
Accumulated Other Comprehensive Income (Loss), Net of Tax
Reclassifications, before tax	(0.6)	(1.5)	0.2	(0.5)
Net amortization of prior service cost and actuarial losses | Scenario, Adjustment
Accumulated Other Comprehensive Income (Loss), Net of Tax
Other comprehensive income (loss) before reclassifications and tax	$ (0.4)	$ (0.5)	$ (0.8)	$ (1.1)