Quarterly report pursuant to Section 13 or 15(d)

Acquisitions and Investments in Joint Ventures - Summary of Recording of Fair Values of Assets Acquired and Liabilities Assumed (Detail)

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Acquisitions and Investments in Joint Ventures - Summary of Recording of Fair Values of Assets Acquired and Liabilities Assumed (Detail) - USD ($)
$ in Thousands
Jun. 27, 2015
Sep. 27, 2014
Jun. 28, 2014
Apr. 01, 2014
Business Acquisition [Line Items]        
Goodwill $ 209,089 $ 208,233 $ 205,756  
Envincio, LLC [Member]        
Business Acquisition [Line Items]        
Current assets, net of cash and cash equivalents acquired       $ 6,650
Fixed assets       20
Goodwill       3,333
Intangible assets       11,450
Current liabilities       (1,170)
Net assets acquired, less cash and cash equivalents       20,283
As Previously Reported [Member] | Envincio, LLC [Member]        
Business Acquisition [Line Items]        
Current assets, net of cash and cash equivalents acquired       6,650
Fixed assets       20
Goodwill       2,477
Intangible assets       12,306
Current liabilities       (1,170)
Net assets acquired, less cash and cash equivalents       20,283
Adjustments [Member] | Envincio, LLC [Member]        
Business Acquisition [Line Items]        
Current assets, net of cash and cash equivalents acquired       0
Fixed assets       0
Goodwill       856
Intangible assets       (856)
Current liabilities       0
Net assets acquired, less cash and cash equivalents       $ 0