Income Taxes (Schedule Of Effective Income Tax Rate Reconciliation) (Details)	12 Months Ended
	Feb. 28, 2022	Feb. 28, 2021	Feb. 29, 2020
Income Tax Disclosure [Abstract]
Federal statutory income tax rate	21.00%	21.00%	21.00%
State and local income taxes, net of federal benefit	3.70%	3.30%	3.40%
Share-based compensation	(1.80%)	(1.60%)	(1.10%)
Nondeductible and other items	0.70%	0.50%	0.70%
Credits	(0.70%)	(0.60%)	(0.50%)
Effective income tax rate	22.90%	22.60%	23.50%