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.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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The amount of goodwill arising from a business combination that is expected to be deductible for tax purposes.

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- Definition

Fair value at acquisition-date of the equity interest in the acquiree held by the acquirer, immediately before the acquisition date for businesses combined in stages.

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In a business combination achieved in stages, this element represents the amount of gain recognized by the entity as a result of remeasuring to fair value the equity interest in the acquiree it held before the business combination.

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The cash inflow associated with the acquisition of business during the period (for example, cash that was held by the acquired business).

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The number of businesses acquired by the entity during the period.

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The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.

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Acquisitions - Narrative (Details)		12 Months Ended
Acquisitions - Narrative (Details)	Dec. 10, 2021 USD ($)	May 31, 2022 USD ($) reportingUnit	May 31, 2021 USD ($) reportingUnit	May 31, 2020 USD ($)
Business Acquisition [Line Items]
Cash consideration transferred, net of cash acquired		$ 164,228,000	$ 10,038,000	$ 53,720,000
Gain on equity method investment transaction		$ 30,151,000	$ 0	$ 0
Amortization period	9 years
Uniform rental and facility services
Business Acquisition [Line Items]
Number of businesses acquired \| reportingUnit		3	2
First Aid and Safety Services
Business Acquisition [Line Items]
Number of businesses acquired \| reportingUnit		10	3
All Other
Business Acquisition [Line Items]
Number of businesses acquired \| reportingUnit		7	5
Equity Method Investment
Business Acquisition [Line Items]
Cash consideration transferred, net of cash acquired	$ 48,000,000
Cash acquired	1,700,000
Equity interest in acquiree, fair value	43,500,000
Gain on equity method investment transaction	30,200,000
Goodwill deductible for tax purposes	$ 0