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Revenue Recognition - Performance Obligation Narrative (Details)
$ in Thousands
3 Months Ended 6 Months Ended
Mar. 27, 2020
USD ($)
performance_obligation
Mar. 29, 2019
USD ($)
Mar. 27, 2020
USD ($)
performance_obligation
Mar. 29, 2019
USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]        
Revenue $ 3,731,559 $ 3,999,987 $ 7,985,156 $ 8,265,336
Number of remaining performance obligations | performance_obligation 1   1  
Uniform        
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]        
Revenue $ 647,000 $ 641,000 $ 1,315,400 $ 1,292,800