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Retirement Plan - Components of AOCL (Detail) - USD ($)
$ in Thousands
Jun. 27, 2019
Jun. 28, 2018
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss) [Abstract]    
Unrecognized net loss $ (5,453) $ (2,951)
Unrecognized prior service cost (1,435) (2,392)
Tax effect 2,563 2,162
Net amount unrecognized $ (4,325) $ (3,181)