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Long-term Debt (Narrative) (Details) - USD ($)
$ in Thousands
3 Months Ended
Sep. 24, 2017
Jun. 25, 2017
Long-term Debt, Unclassified [Abstract]    
Line of Credit Facility, Maximum Borrowing Capacity $ 500,000  
Line of Credit, Maturity Date Jan. 09, 2020  
Long-term debt $ 141,000 $ 145,000
Line of Credit Facility, Remaining Borrowing Capacity $ 359,000  
Long-term Debt, Average Interest Rate 1.78%  
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage 0.09%