G & K Services, Inc. Transaction and Integration Expenses (Details) - USD ($) $ in Thousands	12 Months Ended
	May 31, 2019	May 31, 2018	May 31, 2017
Business Combination, Separately Recognized Transactions [Line Items]
G&K Services, Inc. transaction and integration expenses	$ 14,410	$ 41,897	$ 79,224
Facility closure expenses	16,900
Employee termination expense (credit)	(2,500)
Asset impairment charge	0	0	23,331
G & K Services
Business Combination, Separately Recognized Transactions [Line Items]
G&K Services, Inc. transaction and integration expenses	14,400	41,900	79,200
Employee termination expense (credit)			31,000
Asset impairment charge			23,300
Business acquisition and integration expenses			55,900
Legal and professional fees			17,400
Inventory write-down			5,500
Other expenses			2,000
Employee termination benefits paid	3,800	15,200	6,700
Related severance liability	$ 2,800	$ 9,100	$ 24,300