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Reconciliation of Changes in Warranty Reserve (Detail) - Jun. 26, 2015 - USD ($)
$ in Thousands
Total
Total
Warranty Liability [Line Items]    
Balance at beginning of period $ 3,407 $ 3,319
Cash paid for warranty repairs (1,366) (4,466)
Provision for current period sales 1,288 4,476
Balance at end of period $ 3,329 $ 3,329