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Contingencies - Additional information (Detail) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Dec. 27, 2017
Dec. 28, 2016
Dec. 27, 2017
Dec. 28, 2016
Jun. 28, 2017
Guarantor Obligations [Line Items]          
Lease guarantee charges $ 1,433 $ 0 $ 1,433 $ 0  
Payments for Legal Settlements 500        
Letters of Credit Outstanding, Amount 31,000   31,000    
Lease Guarantees And Secondary Obligations [Member]          
Guarantor Obligations [Line Items]          
Loss Contingency, Estimate of Possible Loss 65,000   65,000   $ 69,000
Loss Contingency, Accrual, Current $ 2,000   $ 2,000   $ 1,100
Description of Material Contingencies of Parent Company     No other liabilities related to this matter have been recorded