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

Service Revenue (Narrative) (Performance Obligation) (Details)

v3.25.2
Service Revenue (Narrative) (Performance Obligation) (Details)
$ in Millions
May 31, 2025
USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-06-01  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Deferred revenue related to material rights $ 47.3
Deferred revenue, timing of satisfaction 1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-06-01  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Deferred revenue related to material rights $ 45.1
Deferred revenue, timing of satisfaction