Investments in Unconsolidated Affiliates and Variable Interest Entities - Schedule of Raw Material Purchases under Supply Agreement (Details) - USD ($) $ in Thousands	9 Months Ended
	Mar. 29, 2020	Mar. 31, 2019
UNF [Member]
Schedule Of Equity Method Investments [Line Items]
Raw material purchases under supply agreement	$ 1,343	$ 1,478
UNF America [Member]
Schedule Of Equity Method Investments [Line Items]
Raw material purchases under supply agreement	13,219	17,199
UNF and UNF America [Member]
Schedule Of Equity Method Investments [Line Items]
Raw material purchases under supply agreement	$ 14,562	$ 18,677