Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Feb. 29, 2024	Feb. 28, 2023	Feb. 29, 2024	Feb. 28, 2023
Condensed Consolidated Statements of Comprehensive Income
Net income	$ 14.0	$ 21.8	$ 37.2	$ 67.0
Other comprehensive loss, net of tax:
Currency translation adjustments	(0.2)	0.7	(0.1)	(2.9)
Pension and other post-retirement plans, net of tax		0.1	14.9	0.5
Other comprehensive income (loss), net of tax	(0.2)	0.8	14.8	(2.4)
Comprehensive income	$ 13.8	$ 22.6	$ 52.0	$ 64.6