Acquisitions - Narrative (Details) - USD ($)		3 Months Ended	12 Months Ended
	Mar. 21, 2017	Aug. 31, 2017	May 31, 2017	Aug. 15, 2016
Business Acquisition [Line Items]
Goodwill deductible for income tax purposes		$ 0
G&K Services
Business Acquisition [Line Items]
Consideration transferred	$ 2,112,811,000
Share price of acquisition (in dollars per share)	$ 97.50			$ 97.50
Total purchase price	$ 2,078,418,000
Deferred tax purchase price adjustment		$ 24,100,000
Goodwill deductible for income tax purposes	0
G&K Services | Real Property
Business Acquisition [Line Items]
Preliminary fair value property, plant and equipment	141,800,000
G&K Services | Personal Property
Business Acquisition [Line Items]
Preliminary fair value property, plant and equipment	$ 112,200,000
G&K Services | Level 3
Business Acquisition [Line Items]
Discount rate (as a percent)	9.50%
G&K Services | Service contracts
Business Acquisition [Line Items]
Amortization period (in years)			15 years