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Retirement Plan - Schedule of Net Periodic Benefit Costs (Detail) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Mar. 30, 2017
Mar. 24, 2016
Mar. 30, 2017
Mar. 24, 2016
Compensation and Retirement Disclosure [Abstract]        
Service cost $ 157 $ 123 $ 473 $ 368
Interest cost 203 211 608 633
Amortization of prior service cost 239 239 718 718
Amortization of loss 92 12 274 37
Net periodic benefit cost $ 691 $ 585 $ 2,073 $ 1,756