Stockholders' Equity - Schedule of Accumulated Other Comprehensive Loss and Related Tax Effects (Detail) - USD ($) $ in Thousands	12 Months Ended
	Oct. 02, 2015	Sep. 26, 2014	Sep. 27, 2013
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	$ 1,616,420	$ 1,713,847	$ 1,509,776
Ending balance	1,726,344	1,616,420	1,713,847
Net Unrealized Gains (Losses) Defined Benefit Pension and Post-Retirement Benefit Plans
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(44,060)	(40,081)	(48,623)
Other comprehensive earnings before reclassifications	(4,521)	(5,429)	7,545
Amounts reclassified out of other comprehensive earnings	2,099	2,316	2,950
Tax benefit (expense)	412	(866)	(1,953)
Ending balance	(46,070)	(44,060)	(40,081)
Net Unrealized Gains (Losses) Cash Flow Hedging Instruments
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	965	(691)	531
Other comprehensive earnings before reclassifications	2,239	3,925	509
Amounts reclassified out of other comprehensive earnings	(3,780)	(1,281)	(2,463)
Tax benefit (expense)	576	(988)	732
Ending balance	0	965	(691)
Net Unrealized Gains (Losses) Available-for- Sale Securities
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	0	0	0
Other comprehensive earnings before reclassifications	(164)	0	0
Amounts reclassified out of other comprehensive earnings	0	0	0
Tax benefit (expense)	52	0	0
Ending balance	(112)	0	0
Cumulative Translation Adjustment
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(15,516)	701	(8,529)
Other comprehensive earnings before reclassifications	(24,765)	(16,217)	9,230
Amounts reclassified out of other comprehensive earnings	0	0	0
Tax benefit (expense)	0	0	0
Ending balance	(40,281)	(15,516)	701
Accumulated Other Comprehensive Earnings (Loss)
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(58,611)	(40,071)	(56,621)
Other comprehensive earnings before reclassifications	(27,211)	(17,721)	17,284
Amounts reclassified out of other comprehensive earnings	(1,681)	1,035	487
Tax benefit (expense)	1,040	(1,854)	(1,221)
Ending balance	$ (86,463)	$ (58,611)	$ (40,071)