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Debts and Letters of Credit (Details)
 3 Months Ended
Aug. 17, 2015
$ / shares
Oct. 01, 2016
USD ($)
letter_of_credit
$ / shares
Oct. 03, 2015
USD ($)
$ / shares
Jul. 02, 2016
USD ($)
Aug. 21, 2013
USD ($)
Carrying amounts of the liability and equity components:          
Short-term debt   $ 0   $ 0  
Outstanding Letters of Credit          
Number of standby letters of credit | letter_of_credit   11      
Letters of credit outstanding   $ 15,100,000      
0.625% Senior Convertible Notes          
Carrying amounts of the liability and equity components:          
Principal amount of notes   650,000,000   650,000,000  
Unamortized discount of liability component   (54,800,000)   (61,700,000)  
Unamortized debt issuance costs   (4,400,000)   (5,000,000)  
Carrying value of the liability component   590,800,000   583,300,000  
Carrying amount of equity component   $ 134,400,000   134,400,000  
Aggregate principal amount of convertible debt         $ 650,000,000.0
Interest rate on senior convertible notes (as a percent)   0.625% 0.625%   0.625%
Proceeds from issuance of convertible notes after issuance costs         $ 636,300,000
Conversion price of debt (in dollars per share) | $ / shares $ 11.28 $ 11.28 $ 11.28    
Fair market value of convertible debt   $ 649,300,000   $ 633,000,000  
Interest expense for the contractual interest and the amortization of debt discount          
Effective interest rate (as a percent)   5.40% 5.40%    
Interest expense-contractual interest   $ 1,000,000 $ 1,000,000    
Accretion of debt discount   $ 6,900,000 $ 6,500,000