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Service Revenue (Summary of Deferred Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction) (Details)
$ in Millions
Aug. 31, 2024
USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Deferred revenue related to material rights $ 73.4
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-09-01  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Deferred revenue, timing of satisfaction 9 months
Deferred revenue related to material rights $ 25.3
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, timing of satisfaction 1 year
Deferred revenue related to material rights $ 26.4
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, timing of satisfaction
Deferred revenue related to material rights $ 21.7