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Pension and Other Employee Benefits - Schedule of Reconciliation of Benefit Obligations, Plan Assets Funded Status (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Sep. 28, 2013
Sep. 29, 2012
Sep. 24, 2011
Other Liabilities Disclosure [Abstract]      
Benefit obligation at beginning of year $ (9,744) $ (8,064) $ (9,093)
Service cost         
Interest cost (354) (391) (389)
Plan participants' contributions         
Actuarial gain (loss) 188 (2,002) 1,092
Foreign exchange (loss) gain (503) 383 (5)
Benefits paid 348 330 331
Benefit obligation at end of year (10,065) (9,744) (8,064)
Plan assets         
Funded status $ (10,065) $ (9,744) $ (8,064)