Goodwill and Other Intangibles - Goodwill (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Dec. 01, 2018	Dec. 01, 2018	Mar. 03, 2018
Goodwill
Goodwill impairment, net of tax		$ 235,698
Carrying amount of goodwill
Beginning Balance		1,421,120
Goodwill impairment	$ 0	(312,985)
Ending Balance	1,108,135	1,108,135
Retail Pharmacy
Carrying amount of goodwill
Beginning Balance		43,492
Ending Balance	43,492	43,492
Pharmacy Services
Goodwill
Accumulated impairment losses	574,712	574,712	$ 261,727
Carrying amount of goodwill
Beginning Balance		1,377,628
Goodwill impairment		(312,985)
Ending Balance	$ 1,064,643	$ 1,064,643

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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Amount of accumulated impairment loss for 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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