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Schedule of Components of Accumulated Other Comprehensive Loss (Detail) - USD ($)
$ in Thousands
Sep. 29, 2017
Sep. 30, 2016
Oct. 02, 2015
Accumulated Other Comprehensive Income Loss Net Of Tax [Abstract]      
Unrealized gain (loss) on derivative contracts $ 13,469 $ (4,547)  
Tax effect (3,892) 1,077  
Unrealized gain (loss) on derivative contracts, Total 9,577 (3,470)  
Pension and post-retirement obligations (81,782) (116,346)  
Tax effect 27,956 39,804  
Pension and post-retirement obligations, Total (53,826) (76,542)  
Currency translation adjustment (222,629) (268,845) $ (226,000)
Accumulated other comprehensive loss $ (266,878) $ (348,857)