Employee Benefit Plan Obligations Multi-Employer Pension Plan (Details) - USD ($) $ in Millions		12 Months Ended
		Feb. 22, 2019	Feb. 23, 2018	Feb. 24, 2017
Multiemployer Plans [Line Items]
Multiemployer Plans, Period Contributions, Significance of Contributions [true/false]		false
Multiemployer Plans, Certified Zone Status	[1]		Red	Red
Multiemployer Plans, Funding Improvement Plan and Rehabilitation Plan	[2]	Implemented
Multiemployer Plan, Contributions by Employer		$ 0.2	$ 0.2	$ 0.3
Multiemployer Plans, Surcharge		No
Multiemployer Plan Number		001

[1] The most recent Pension Protection Act Zone Status available in 2018 and 2017 relates to the plan's two most recent fiscal year-ends. The zone status is based on information received from the plan certified by the plan’s actuary. Among other factors, red zone status plans are generally less than 65 percent funded and are considered in critical status.

[2] The FIP/RP Status Pending/Implemented column indicates plans for which a financial improvement plan or a rehabilitation plan is either pending or has been implemented by the trustees of the plan