Annual report pursuant to Section 13 and 15(d)

Property and Equipment, Net - Additional Information (Detail)

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Property and Equipment, Net - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Sep. 27, 2014
Sep. 28, 2013
Sep. 29, 2012
Property Plant and Equipment Useful Life And Values [Abstract]      
Depreciation and amortization expense, including the amortization of intangible assets $ 35,781 $ 32,968 $ 30,425