Cancellation Reserves (Schedule Of Cancellation Reserves Accrual) (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Aug. 31, 2026 |
Aug. 31, 2025 |
Aug. 31, 2026 |
Aug. 31, 2025 |
|
| SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] | ||||
| Balance as of beginning of period | $ 137.1 | $ 138.7 | $ 131.1 | $ 133.9 |
| Cancellations | (21.0) | (19.9) | (41.2) | (39.9) |
| Provision for future cancellations | 27.1 | 17.1 | 53.3 | 41.9 |
| Balance as of end of period | $ 143.2 | $ 135.9 | $ 143.2 | $ 135.9 |