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Income Taxes - Reconciliations of Income Taxes at Statutory Federal Income Tax Rate (Detail)
12 Months Ended
Jun. 25, 2015
Jun. 26, 2014
Jun. 27, 2013
Income Tax Disclosure [Abstract]      
Federal statutory income tax rate 35.00% 35.00% 35.00%
State income taxes, net of federal benefit 3.40% 3.30% 4.50%
Research and development tax credit (0.10%) (0.10%) (0.20%)
Domestic manufacturing deduction (3.40%) (2.70%) (3.40%)
Change in valuation allowance 0.00% (1.40%) 2.00%
Other (0.20%) (0.10%) 0.40%
Effective tax rate 34.70% 34.00% 38.30%