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Contingencies - Additional information (Detail) - USD ($)
$ in Millions
3 Months Ended
Sep. 27, 2017
Jun. 28, 2017
Guarantor Obligations [Line Items]    
Letters of Credit Outstanding, Amount $ 31.0  
Lease Guarantees And Secondary Obligations [Member]    
Guarantor Obligations [Line Items]    
Loss Contingency, Estimate of Possible Loss 63.1 $ 69.0
Loss Contingency, Accrual, Current $ 1.1  
Description of Material Contingencies of Parent Company No other liabilities have been recorded