Derivative Financial Instruments - Location of Hedged Liabilities (Details) - USD ($) $ in Thousands	Sep. 29, 2018	Sep. 30, 2017
Current maturities of long-term debt
Derivative [Line Items]
Carrying Amount of Hedged Assets (Liabilities)	$ (499,739)	$ (499,874)
Cumulative Amount of Fair Value Hedging Adjustments Included in the Carrying Amount of Hedged Assets (Liabilities)	3,609	(223)
Long-term debt
Derivative [Line Items]
Carrying Amount of Hedged Assets (Liabilities)	(1,744,043)	(1,746,904)
Cumulative Amount of Fair Value Hedging Adjustments Included in the Carrying Amount of Hedged Assets (Liabilities)	$ 55,569	$ 22,259