Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Nov. 30, 2023	Nov. 30, 2022	Nov. 30, 2023	Nov. 30, 2022
Condensed Consolidated Statements of Comprehensive Income
Net income	$ 23.8	$ 22.5	$ 23.2	$ 45.2
Other comprehensive loss, net of tax:
Currency translation adjustments	(0.4)	(0.3)	0.1	(3.6)
Pension and other post-retirement plans, net of tax		0.2	14.9	0.4
Other comprehensive income (loss), net of tax	(0.4)	(0.1)	15.0	(3.2)
Comprehensive income	$ 23.4	$ 22.4	$ 38.2	$ 42.0