Revenue Recognition (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended
	Nov. 30, 2023	Aug. 31, 2023
Deferred revenue	$ 103.3	$ 111.2
Other long-term liabilities	3.8	3.7
Remaining performance obligations	169.7
Subscription Offerings [Member]
Deferred revenue	87.2	$ 99.0
Subscription [Member]
Deferred revenue recognized	$ 36.6