[Line Items] for Accounting Policies [Table]

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- Definition

Inventories, Useful Life, Maximum

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Inventories, Useful Life, Minimum

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- Definition

Number of Business Customers

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- Definition

Partnership, Ownership Percentage by Third Party

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- Definition

Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences, with jurisdictional netting and classified as current.

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-Name Accounting Standards Codification
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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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Number of reporting units tested for impairment of goodwill. A reporting unit is an operating segment or one level below an operating segment.

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The carrying amounts of cash and cash equivalent items which are restricted as to withdrawal or usage. Restrictions may include legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits; however, time deposits and short-term certificates of deposit are not generally included in legally restricted deposits. Excludes compensating balance arrangements that are not agreements which legally restrict the use of cash amounts shown on the balance sheet. This element is for unclassified presentations; for classified presentations there is a separate and distinct element.

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Significant Accounting Policies - Narrative (Details) $ in Millions				12 Months Ended
	Jun. 01, 2015 segment	Jun. 01, 2015	May 31, 2015 USD ($) segment	May 31, 2016 USD ($) customer	May 31, 2014
Accounting Policies [Line Items]
Number of businesses helped (more than) \| customer				900,000
Number of reportable segments \| segment			3
Restricted cash			$ 43.0	$ 50.6
Goodwill impairment units	5	5
New Accounting Pronouncement, Early Adoption, Effect
Accounting Policies [Line Items]
Deferred tax liabilities, current			$ 112.4
Minimum \| Service Contacts and Other Assets
Accounting Policies [Line Items]
Service contracts and other assets useful lives (years)				5 years
Maximum \| Service Contacts and Other Assets
Accounting Policies [Line Items]
Service contracts and other assets useful lives (years)				10 years
All Other
Accounting Policies [Line Items]
Goodwill impairment units	3	3
Uniforms in Service
Accounting Policies [Line Items]
Inventories useful life, maximum				18 months
Other Rental Items
Accounting Policies [Line Items]
Inventories useful life, minimum				8 months
Inventories useful life, maximum				60 months
Shred-it Partnership
Accounting Policies [Line Items]
Equtiy method investment ownership (as a percent)					42.00%
Partnership ownership by third party (as a percent)					58.00%