Income Taxes (Schedule Of Income Tax Provision) (Details) - USD ($) $ in Thousands	12 Months Ended
	Feb. 28, 2022	Feb. 28, 2021	Feb. 29, 2020
Income Tax Disclosure [Abstract]
Current, Federal	$ 264,194	$ 209,447	$ 225,858
Current, State	61,855	44,678	47,797
Current, Total	326,049	254,125	273,655
Deferred, Federal	10,560	(27,971)	146
Deferred, State	4,440	(7,816)	(1,248)
Deferred, Total	15,000	(35,787)	(1,102)
Income Tax Expense (Benefit), Total	$ 341,049	$ 218,338	$ 272,553