Goodwill, Service Contracts and Other Assets, Net - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Nov. 30, 2025	Nov. 30, 2024	Nov. 30, 2025	Nov. 30, 2024
Goodwill, Service Contracts And Other Assets [Abstract]
Amortization expense for service contracts and other assets	$ 41.3	$ 41.8	$ 83.5	$ 82.5