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Derivative Instruments - Narrative (Details)
$ in Thousands, gal in Millions
3 Months Ended 12 Months Ended
Jan. 01, 2021
USD ($)
gal
Dec. 27, 2019
USD ($)
Oct. 02, 2020
USD ($)
Derivative [Line Items]      
Gain (loss) recognized in income $ (11,826) $ 1,700  
Designated as Hedging Instrument | Cash Flow Hedging      
Derivative [Line Items]      
Net tax loss expected to be reclassified from accumulated other comprehensive loss 36,100    
Not Designated as Hedging Instrument      
Derivative [Line Items]      
Gain (loss) recognized in income 1,739 3,900  
Interest rate swap agreements | Designated as Hedging Instrument      
Derivative [Line Items]      
Derivative, notional amount 2,600,000    
Interest rate swap agreements | Designated as Hedging Instrument | Cash Flow Hedging      
Derivative [Line Items]      
Derivative, notional amount 250,000    
Cash flow hedge gain (loss) (78,500)   $ (87,600)
Gain (loss) recognized in income $ (1,242) 6,926  
Gasoline and diesel fuel agreements | Not Designated as Hedging Instrument      
Derivative [Line Items]      
Nonmonetary notional amount, volume | gal 9.8    
Gain (loss) recognized in income $ 3,600 $ 3,100