Annual report [Section 13 and 15(d), not S-K Item 405]

Service Revenue (Summary of Changes in Deferred Revenue Related to Material Rights Performance Obligations) (Details)

v3.25.2
Service Revenue (Summary of Changes in Deferred Revenue Related to Material Rights Performance Obligations) (Details) - USD ($)
$ in Millions
12 Months Ended
May 31, 2025
May 31, 2024
Revenue from Contract with Customer [Abstract]    
Balance, beginning of period $ 74.9 $ 62.0
Deferred revenue acquired 19.0  
Deferral of revenue 39.0 46.7
Recognition of unearned revenue (40.5) (33.8)
Balance, end of period $ 92.4 $ 74.9