Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended			9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended
	Nov. 30, 2013	Dec. 01, 2012	Nov. 30, 2013	Dec. 01, 2012	Mar. 02, 2013	Nov. 30, 2013 Favorable leases and other	Mar. 02, 2013 Favorable leases and other	Nov. 30, 2013 Prescription files	Mar. 02, 2013 Prescription files
Finite-lived intangible assets
Gross carrying amount	$ 1,968,866		$ 1,968,866		$ 1,909,628	$ 635,095	$ 623,541	$ 1,333,771	$ 1,286,087
Accumulated amortization	(1,530,585)		(1,530,585)		(1,445,224)	(441,542)	(413,556)	(1,089,043)	(1,031,668)
Remaining weighted average amortization period						9 years	10 years	4 years	4 years
Unfavorable lease intangibles	64,522		64,522		70,195
Amortization expense for intangible assets and liabilities	28,961	31,143	89,767	95,972
Anticipated annual amortization expense for intangible assets and liabilities
2014	111,702		111,702
2015	100,399		100,399
2016	88,857		88,857
2017	75,596		75,596
2018	$ 37,687		$ 37,687