Income Taxes (Schedule Of Income Tax Provision) (Details) - USD ($) $ in Thousands	12 Months Ended
	Feb. 28, 2023	Feb. 28, 2022	Feb. 28, 2021
Income Tax Disclosure [Abstract]
Current, Federal	$ 128,994	$ 264,194	$ 209,447
Current, State	29,598	61,855	44,678
Current, Total	158,592	326,049	254,125
Deferred, Federal	(1,118)	10,560	(27,971)
Deferred, State	(5,432)	4,440	(7,816)
Deferred, Total	(6,550)	15,000	(35,787)
Income Tax Expense (Benefit), Total	$ 152,042	$ 341,049	$ 218,338