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LONG-TERM DEBT - Schedule of Unused Available Credit and Fees (Details) - Line of Credit
$ in Thousands
9 Months Ended
Apr. 27, 2019
USD ($)
Letter of Credit  
Line of Credit Facility [Line Items]  
Outstanding letters of credit $ 80,606
Letter of credit fees 1.625%
Revolving Credit Facility  
Line of Credit Facility [Line Items]  
Unused available credit $ 791,352
Unused facility fees 0.25%