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Other Non-Current Assets - Schedule of Raw Material Purchases under Supply Agreement (Details) - USD ($)
$ in Thousands
 6 Months Ended
Dec. 26, 2021
Dec. 27, 2020
UNF America [Member]    
Schedule Of Equity Method Investments [Line Items]    
Raw material purchases under supply agreement $ 12,582 $ 8,005
UNF [Member]    
Schedule Of Equity Method Investments [Line Items]    
Raw material purchases under supply agreement 146 207
UNF and UNF America [Member]    
Schedule Of Equity Method Investments [Line Items]    
Raw material purchases under supply agreement $ 12,728 $ 8,212