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Accumulated Other Comprehensive Loss - Reclassifications Out of AOCL (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Jun. 28, 2018
Jun. 29, 2017
Accumulated Defined Benefit Plans Adjustment, Net Prior Service Attributable to Parent [Member]    
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]    
Unrecognized prior service cost $ (957) $ (957)
Accumulated Defined Benefit Plans Adjustment, Net Gain (Loss) Attributable to Parent [Member]    
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]    
Unrecognized net loss (162) (365)
Amortization of Defined Benefit Pension Items [Member]    
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]    
Total amortization of pension items before tax (1,119) (1,322)
Income tax expense 280 502
Amortization of defined pension items, net of tax $ (839) $ (820)