Leases - Assets and Liabilities (Details) - USD ($) $ in Millions	May 31, 2024	May 31, 2023
Leases [Abstract]
Operating lease right-of-use assets, net	$ 99.1	$ 85.7
Finance leases	5.6	6.1
Total lease assets	104.7	91.8
Operating lease liabilities	22.4	21.2
Operating lease liabilities	89.2	73.8
Total operating lease liabilities	111.6	95.0
Current portion	$ 1.7	$ 2.2
Other noncurrent liabilities	Other noncurrent liabilities	Other noncurrent liabilities
Non-current portion	$ 4.5	$ 4.6
Total finance lease liabilities	6.2	6.8
Total lease liabilities	$ 117.8	$ 101.8
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Property, plant and equipment, net	Property, plant and equipment, net
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Other accrued expenses	Other accrued expenses