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Derivative Instruments - Narrative (Details)
$ in Thousands, € in Millions, gal in Millions
3 Months Ended 6 Months Ended 12 Months Ended
Mar. 29, 2019
USD ($)
Mar. 30, 2018
USD ($)
Mar. 29, 2019
USD ($)
Mar. 30, 2018
USD ($)
Sep. 28, 2018
USD ($)
Mar. 29, 2019
EUR (€)
gal
Mar. 29, 2019
USD ($)
gal
Derivative [Line Items]              
Gain (loss) recognized in income $ 5,936 $ (3,860) $ (1,684) $ (1,891)      
Designated as Hedging Instrument | Cash Flow Hedging              
Derivative [Line Items]              
Net tax loss expected to be reclassified from accumulated other comprehensive loss     3,400        
Not Designated as Hedging Instrument              
Derivative [Line Items]              
Gain (loss) recognized in income 3,609 (1,039) (5,713) 3,026      
Interest rate swap agreements | Designated as Hedging Instrument              
Derivative [Line Items]              
Notional amount of derivative             $ 2,800,000
Interest rate swap agreements | Designated as Hedging Instrument | Cash Flow Hedging              
Derivative [Line Items]              
Notional amount of derivative             $ 500,000
Notional amount of matured hedges 300,000            
Cash flow hedge gain (loss)     (5,700)   $ 36,200    
Gain (loss) recognized in income (21,524) 31,323 (52,525) 36,568      
Gasoline and diesel fuel agreements | Not Designated as Hedging Instrument              
Derivative [Line Items]              
Non monetary notional amount of derivative (in gallons) | gal           13.9 13.9
Gain (loss) recognized in income $ 4,900 $ (1,700) $ (4,300) $ 200      
Foreign currency forward exchange contracts | Not Designated as Hedging Instrument              
Derivative [Line Items]              
Notional amount of derivative | €           € 15.5