Goodwill and Intangible Assets (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Apr. 30, 2025	Apr. 30, 2024	Apr. 30, 2025	Apr. 30, 2024
Finite-Lived Intangible Assets
Loss on impairment of intangible assets	$ 62.0	$ 0.0	$ 62.0	$ 0.0
Amortization expense	3.4	3.9	11.3	11.7
Foreign currency translation gain (loss)	6.3	$ (0.9)	$ 3.1	$ (2.6)
Solaris as Market Demand
Finite-Lived Intangible Assets
Loss on impairment of intangible assets	15.4
Univercells Technologies
Finite-Lived Intangible Assets
Loss on impairment of intangible assets	46.6
Life Sciences Segment
Finite-Lived Intangible Assets
Loss on impairment of intangible assets	$ 62.0