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Retirement Plan - Schedule of Net Benefit Costs (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Mar. 27, 2014
Mar. 28, 2013
Mar. 27, 2014
Mar. 28, 2013
Compensation And Retirement Disclosure [Abstract]        
Service cost $ 81 $ 86 $ 242 $ 257
Interest cost 159 142 476 427
Amortization of prior service cost 239 239 718 718
Amortization of gain (17)    (51)   
Net periodic benefit cost $ 462 $ 467 $ 1,385 $ 1,402