Annual report pursuant to Section 13 and 15(d)

Acquisitions - Summary of Preliminary Recording of Fair Values of Assets Acquired and Liabilities Assumed (Detail)

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Acquisitions - Summary of Preliminary Recording of Fair Values of Assets Acquired and Liabilities Assumed (Detail) (USD $)
In Thousands, unless otherwise specified
Sep. 27, 2014
Sep. 28, 2013
Sep. 29, 2012
Sep. 24, 2011
Apr. 01, 2014
Envincio, LLC [Member]
Business Acquisition [Line Items]          
Current assets, net of cash and cash equivalents acquired         $ 6,650
Fixed assets         20
Goodwill 208,233 205,756 210,223 210,223 2,477
Intangible assets         12,306
Current liabilities         (1,170)
Net assets acquired, less cash and cash equivalents         $ 20,283