Investments in Unconsolidated Affiliates and Variable Interest Entities - Additional Information (Details) $ in Thousands	3 Months Ended
	Sep. 30, 2018 USD ($) Entity FuturesContract	Jun. 24, 2018 USD ($)
Schedule Of Equity Method Investments [Line Items]
Unconsolidated Entities, Number | Entity	3
Equity method investments	$ 112,726	$ 112,639
Parkdale America LLC [Member]
Schedule Of Equity Method Investments [Line Items]
Equity method investments	$ 110,588
Number of futures contracts designated as cash flow hedges | FuturesContract	0
UNF and UNF America [Member]
Schedule Of Equity Method Investments [Line Items]
Equity method investments	$ 2,138
Purchase commitment, remaining minimum amount committed	10,503
Accounts payable, related parties	$ 2,004	$ 2,301
Percentage of current and total assets and total liabilities accounted for by equity method investments	3.00%