Business Segment Information - Sales by Product and Services (Details) - USD ($) $ in Millions	12 Months Ended
	May 31, 2022	May 31, 2021	May 31, 2020
Net sales	$ 1,820.0	$ 1,652.3	$ 2,072.0
Aviation supply chain
Net sales	1,275.1	1,172.7	1,434.3
Maintenance, repair and overhaul services
Net sales	470.7	381.0	529.9
Mobility products
Net sales	$ 74.2	$ 98.6	$ 107.8