Segment Reporting - Balance Sheet information (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Jun. 02, 2018	Mar. 03, 2018	Mar. 04, 2018
Segment Reporting
Total assets	$ 8,329,453	$ 8,989,327	$ 8,980,779
Goodwill	1,421,120	1,421,120
Additions to property and equipment and intangible assets	61,626	214,764
Accounts receivable	1,908,955	1,869,100	$ 1,811,203
Operating segments \| Retail Pharmacy
Segment Reporting
Total assets	5,434,447	6,089,343
Goodwill	43,493	43,492
Additions to property and equipment and intangible assets	58,067	199,437
Operating segments \| Pharmacy Services
Segment Reporting
Total assets	2,950,099	2,954,953
Goodwill	1,377,627	1,377,628
Additions to property and equipment and intangible assets	3,559	15,327
Intersegment elimination
Segment Reporting
Total assets	(55,093)	(54,969)
Long-term deferred tax liability	(40,319)	(38,713)
Accounts receivable	$ (14,774)	$ (16,256)

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.

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Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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