Restructuring (Details) - USD ($) $ in Thousands	3 Months Ended
May 30, 2020	Jun. 01, 2019
Restructuring related liabilities
Anticipated restructuring-related costs in fiscal 2021	$ 60,000
Trademarks
Restructuring related liabilities
Impairment of intangible assets	29,852
Reorganization Of Executive Management Team, Ongoing Workforce Reduction And Consolidation, And Transformation Initiatives [Member]
Restructuring related liabilities
Balance-beginning of period	45,054
Restructuring expense	35,735	$ 43,350
Cash payments	(18,101)
Balance-end of period	36,925
Reorganization Of Executive Management Team, Ongoing Workforce Reduction And Consolidation, And Transformation Initiatives [Member] \| Selling, general and administrative expenses
Restructuring related liabilities
Restructuring expense	9,972	43,350
Reorganization Of Executive Management Team, Ongoing Workforce Reduction And Consolidation, And Transformation Initiatives [Member] \| Cost of revenues
Restructuring related liabilities
Restructuring expense	25,763
Severance and related costs
Restructuring related liabilities
Balance-beginning of period	36,228
Restructuring expense	4,811	27,076
Cash payments	(13,055)
Balance-end of period	27,984
Severance and related costs \| Selling, general and administrative expenses
Restructuring related liabilities
Restructuring expense	4,811
Non-executive retention costs
Restructuring related liabilities
Balance-beginning of period	6,432
Restructuring expense	629	6,664
Balance-end of period	7,061
Non-executive retention costs \| Selling, general and administrative expenses
Restructuring related liabilities
Restructuring expense	629
Professional and other fees
Restructuring related liabilities
Balance-beginning of period	2,394
Restructuring expense	4,532	9,610
Cash payments	(5,046)
Balance-end of period	1,880
Professional and other fees \| Selling, general and administrative expenses
Restructuring related liabilities
Restructuring expense	4,532
SKU Optimization [Member]
Restructuring related liabilities
Restructuring expense	25,763
Retail Pharmacy \| Reorganization Of Executive Management Team, Ongoing Workforce Reduction And Consolidation, And Transformation Initiatives [Member]
Restructuring related liabilities
Restructuring expense	35,709	39,381
Retail Pharmacy \| Severance and related costs
Restructuring related liabilities
Restructuring expense	4,559	25,272
Retail Pharmacy \| Non-executive retention costs
Restructuring related liabilities
Restructuring expense	855	4,499
Retail Pharmacy \| Professional and other fees
Restructuring related liabilities
Restructuring expense	4,532	9,610
Retail Pharmacy \| SKU Optimization [Member]
Restructuring related liabilities
Restructuring expense	25,763
Pharmacy Services \| Reorganization Of Executive Management Team, Ongoing Workforce Reduction And Consolidation, And Transformation Initiatives [Member]
Restructuring related liabilities
Restructuring expense	26	3,969
Pharmacy Services \| Severance and related costs
Restructuring related liabilities
Restructuring expense	252	1,804
Pharmacy Services \| Non-executive retention costs
Restructuring related liabilities
Restructuring expense	$ (226)	$ 2,165

The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of an intangible asset (excluding goodwill) to fair value.

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Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

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Amount expected to be recognized in earnings for the specified restructuring cost.

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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

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