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Long Lived Assets by Geographic Area (Detail) (USD $)
In Thousands, unless otherwise specified
Sep. 29, 2013
Sep. 30, 2012
Oct. 02, 2011
Revenues from External Customers and Long-Lived Assets [Line Items]      
Property and equipment, net $ 125,158 $ 116,146 $ 89,922
United States
     
Revenues from External Customers and Long-Lived Assets [Line Items]      
Property and equipment, net 100,736 93,496 69,647
Europe
     
Revenues from External Customers and Long-Lived Assets [Line Items]      
Property and equipment, net 12,558 13,253 12,632
Asia
     
Revenues from External Customers and Long-Lived Assets [Line Items]      
Property and equipment, net 10,209 7,912 7,643
Other Geographic Area [Member]
     
Revenues from External Customers and Long-Lived Assets [Line Items]      
Property and equipment, net $ 1,655 $ 1,485 $ 0