Defined Benefit Pension Settlement (Details) $ in Millions	9 Months Ended
	Feb. 29, 2024 USD ($)
Defined Benefit Pension Settlement
Non-cash, pre-tax pension settlement charge	$ 26.7
Non-cash, after-tax pension settlement charge	$ 16.1
Excise tax upon withdrawal from the plan (as a percent)	20.00%
Surplus plan assets, classified as Other non-current assets	$ 5.7