Cancellation Reserves (Schedule Of Cancellation Reserves Accrual) (Details) - USD ($) $ in Millions	3 Months Ended
	May 31, 2025	May 31, 2024
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance as of beginning of period	$ 133.9	$ 128.3
Cancellations	(20.0)	(21.3)
Provision for future cancellations	24.8	24.3
Balance as of end of period	$ 138.7	$ 131.3