Goodwill and Other Intangibles - Goodwill (Details) - USD ($) $ in Thousands	12 Months Ended
Feb. 29, 2020	Mar. 02, 2019
Carrying amount of goodwill
Beginning Balance	$ 1,108,136	$ 1,421,120
Goodwill impairment	0	(312,984)
Ending Balance	1,108,136	1,108,136
Retail Pharmacy
Carrying amount of goodwill
Beginning Balance	43,492	43,492
Ending Balance	43,492	43,492
Pharmacy Services
Goodwill
Goodwill impairment, net of tax		235,698
Accumulated impairment losses	574,712	574,712
Carrying amount of goodwill
Beginning Balance	1,064,644	1,377,628
Goodwill impairment		(312,984)
Ending Balance	$ 1,064,644	$ 1,064,644

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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