Goodwill and Other Intangibles - Goodwill (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 03, 2018	Mar. 03, 2018	Mar. 04, 2017
Goodwill
Good will impairment, net of tax		$ 191,000
Carrying amount of goodwill
Beginning Balance		1,682,847	$ 1,680,843
Change in goodwill resulting from changes to the final purchase price allocation			2,004
Goodwill impairment	$ (261,727)	(261,727)	0
Ending Balance	1,421,120	1,421,120	1,682,847
Retail Pharmacy
Carrying amount of goodwill
Beginning Balance		43,492	43,492
Ending Balance	43,492	43,492	43,492
Pharmacy Services
Carrying amount of goodwill
Beginning Balance		1,639,355	1,637,351
Change in goodwill resulting from changes to the final purchase price allocation			2,004
Goodwill impairment		(261,727)
Ending Balance	$ 1,377,628	$ 1,377,628	$ 1,639,355