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Retirement Savings Plan (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Jun. 30, 2013
plans
Jun. 24, 2012
Jun. 26, 2011
General Discussion of Pension and Other Postretirement Benefits [Abstract]      
Employee Benefit Plans, Number Of Plans 1    
Defined Contribution Plan, Employer Discretionary Contribution Amount $ 6.2 $ 4.7 $ 3.9