Annual report pursuant to Section 13 and 15(d)

Leases (Supplemental Cash Flow Information Related to Leases) (Details)

v3.20.2
Leases (Supplemental Cash Flow Information Related to Leases) (Details) - USD ($)
$ in Millions
12 Months Ended
May 31, 2020
May 31, 2019
May 31, 2018
Leases [Abstract]      
Cash paid for amounts included in the measurement of lease liabilities $ 41.6    
Amortization of ROU assets 34.4    
ROU assets obtained in exchange for new operating lease liabilities 21.5    
Lease incentives received in the form of tenant allowances and free rent $ 6.1 $ 3.5 $ 7.7