Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Nov. 30, 2022	Nov. 30, 2021	Nov. 30, 2022	Nov. 30, 2021
Condensed Consolidated Statements of Comprehensive Income
Net income	$ 22.5	$ 20.8	$ 45.2	$ 32.3
Other comprehensive loss, net of tax:
Currency translation adjustments	(0.3)	(3.9)	(3.6)	(4.5)
Pension and other post-retirement plans, net of tax	0.2	0.3	0.4	0.6
Other comprehensive loss, net of tax	(0.1)	(3.6)	(3.2)	(3.9)
Comprehensive income	$ 22.4	$ 17.2	$ 42.0	$ 28.4