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Fair Values Of Financial Instruments (Carrying Amount And Fair Value Of Debt) (Details)
$ in Thousands
Jun. 25, 2016
USD ($)
Carrying Amount  
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]  
Estimated fair value of debt $ 898,240
Fair Value  
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]  
Estimated fair value of debt 899,994
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 701,750
Level 2 | Facility Bonds | Carrying Amount  
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]  
Estimated fair value of debt 86,150
Level 2 | Facility Bonds | Fair Value  
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]  
Estimated fair value of debt 86,150
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 89,834
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 89,838
Level 2 | Line of credit payable [Member] | Carrying Amount  
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]  
Estimated fair value of debt 22,256
Level 2 | Line of credit payable [Member] | Fair Value  
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]  
Estimated fair value of debt $ 22,256