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Fair Value of Financial Instruments - Carrying Value and Fair Value Estimate of Long-Term Debt (Detail) - USD ($)
$ in Thousands
Sep. 24, 2015
Jun. 25, 2015
Sep. 25, 2014
Fair Value Disclosures [Abstract]      
Carrying value of long-term debt: $ 34,825 $ 35,666 $ 38,180
Fair value of long-term debt: $ 38,285 $ 39,377 $ 42,051