Property And Equipment (Schedule Of Property And Equipment) (Details) (USD $)	12 Months Ended
	Feb. 28, 2014	Feb. 28, 2013	Feb. 29, 2012
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 2,383,533,000	$ 2,077,951,000
Less accumulated depreciation and amortization	730,556,000	648,981,000
Property and equipment, net	1,652,977,000	1,428,970,000
Accumulated amortization of Capital leases	300,000	200,000
Depreciation Expense	90,400,000	82,300,000	75,200,000
Land [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	346,518,000	275,060,000
Land Held For Sale [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	1,050,000	4,872,000
Land Held For Development [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	170,387,000	168,830,000
Buildings [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	1,244,772,000	1,119,577,000
Capital Leases [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	1,739,000	1,739,000
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	129,186,000	106,695,000
Furniture, Fixtures And Equipment [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	343,958,000	311,646,000
Construction In Progress [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 145,923,000	$ 89,532,000