Fair Value Measurements (Carrying Value And Fair Value Of Long-Term Debt) (Details)	12 Months Ended
May 29, 2016 USD ($) restaurant	Feb. 26, 2017 USD ($)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying value of long-term debt	$ 440,000,000	$ 440,700,000
Fair value of long-term debt	$ 499,500,000	$ 518,600,000
Number of underperforming restaurants \| restaurant	2
Impairment of long-lived assets held-for-use	$ 5,400,000
Impairment of long-lived assets held-for-sale	600,000
Reported Value Measurement \| Fair value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Nonfinancial assets fair value disclosure	5,400,000
Carrying value of long-lived assets held for sale	17,500,000
Estimate of Fair Value Measurement \| Fair value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Nonfinancial assets fair value disclosure	0
Carrying value of long-lived assets held for sale	$ 16,900,000

Nonfinancial Assets Fair Value Disclosure

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Number of Underperforming Restaurants

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- Definition

Fair value portion of assets classified as held for sale.

+ References

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Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale).

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Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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