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Acquisitions - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands |  | 3 Months Ended | 9 Months Ended
--- | --- | --- | ---
Aug. 15, 2016 | Feb. 28, 2017 | Aug. 31, 2016 | Feb. 29, 2016 | Feb. 28, 2017 | Feb. 29, 2016
Business Acquisition [Line Items] |  |  |  |  |  |
Costs incurred |  | $ 9,344 |  | $ 0 | $ 15,478 | $ 0
Contingent consideration paid |  |  |  |  | 4,500 |
Goodwill deductible for income tax purposes |  |  | $ 0 |  |  |
G&K Services |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Share price of acquisition (in dollars per share) | $ 97.50 |  |  |  |  |
Consideration transferred | $ 2,200,000 |  |  |  |  |
Costs incurred |  | $ 9,300 |  |  | $ 15,500 |
ZEE |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Consideration transferred |  |  | 134,000 |  |  |
Cash consideration |  |  | 120,600 |  |  |
Contingent consideration subject to holdback provisions |  |  | $ 13,400 |  |  |
ZEE | Level 3 |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Discount rate |  |  |  |  | 11.00% |
ZEE | Service contracts |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Estimated useful life of service contracts |  |  |  |  | 10 years |

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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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- Definition This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 23 -URI http://asc.fasb.org/extlink&oid=73531572&loc=d3e1043-128460 + Details
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- Definition Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6578-128477 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6613-128477 + Details
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- Definition The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3213-108585 + Details
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