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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 |

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- Definition Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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- Definition The amount of goodwill arising from a business combination that is expected to be deductible for tax purposes. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 + Details
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