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Fair Values Of Financial Instruments (Carrying Amount And Fair Value Of Debt) (Details) $ in Thousands	Mar. 25, 2017 USD ($)
Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Estimated fair value of debt	$ 876,483
Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Estimated fair value of debt	877,358
Level 2 | Senior Notes [Member] | Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Estimated fair value of debt	700,000
Level 2 | Senior Notes [Member] | Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Estimated fair value of debt	700,875
Level 2 | Recovery Zone Facility Bonds [Member] | Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Estimated fair value of debt	81,620
Level 2 | Recovery Zone Facility Bonds [Member] | Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Estimated fair value of debt	81,620
Level 2 | Secured Notes Payable And Other [Member] | Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Estimated fair value of debt	87,665
Level 2 | Secured Notes Payable And Other [Member] | Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Estimated fair value of debt	87,665
Level 2 | Line of credit payable [Member] | Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Estimated fair value of debt	7,198
Level 2 | Line of credit payable [Member] | Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Estimated fair value of debt	$ 7,198

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- Definition

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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No definition available.

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- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

No definition available.

+ Details

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