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Retirement Plan - Changes in Projected Benefit Obligation (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Jun. 26, 2014
Jun. 27, 2013
Jun. 28, 2012
Defined Benefit Plan Change In Benefit Obligation [Roll Forward]      
Benefit obligation at beginning of year $ 13,268 $ 13,989  
Service cost 323 343 243
Interest cost 634 570 600
Actuarial loss (gain) 1,454 (979) 2,579
Benefits paid (654) (655)  
Projected benefit obligation at end of year $ 15,025 $ 13,268 $ 13,989