Service Revenue (Summary of Deferred Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction) (Details) $ in Millions	Nov. 30, 2024 USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Deferred revenue related to material rights	$ 74.0
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	6 months
Deferred revenue related to material rights	$ 17.9
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	$ 29.0
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	$ 27.1