Revenue (Narrative - Performance Obligations) (Details) - USD ($) $ in Thousands |
Jun. 30, 2026 |
Sep. 30, 2025 |
|---|---|---|
| Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] | ||
| Remaining performance obligation amount | $ 4,117,859 | $ 3,195,156 |
| Material Rights [Member] | ||
| Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] | ||
| Remaining performance obligation amount | $ 486,461 |