Acquisitions and Divestitures - Aggregate Purchase Price for Businesses Acquired (Details) - USD ($) $ in Thousands	May 31, 2018	May 31, 2017	May 31, 2016
Business Acquisition [Line Items]
Net goodwill recognized	$ 2,846,888	$ 2,782,335	$ 1,276,076
Series of Business Acquisitions
Business Acquisition [Line Items]
Fair value of tangible assets acquired	421	550,491
Net goodwill recognized	12,094	1,507,554
Total fair value of assets acquired	22,678	2,604,836
Fair value of liabilities assumed	3,332	502,465
Total cash paid for acquisitions, net of cash acquired	19,346	2,102,371
Series of Business Acquisitions \| Service contracts
Business Acquisition [Line Items]
Fair value of intangible assets acquired	9,271	529,235
Series of Business Acquisitions \| Other intangibles
Business Acquisition [Line Items]
Fair value of intangible assets acquired	$ 892	$ 17,556

Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets, Including Goodwill

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- Definition

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.

+ References

No definition available.

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- Definition

The amount of identifiable intangible assets recognized as of the acquisition date.

+ References

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-Publisher FASB
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-Topic 805
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- Definition

Amount of liabilities assumed at the acquisition date.

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- Definition

The amount of property, plant, and equipment recognized as of the acquisition date.

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- Definition

Amount recognized for assets, including goodwill, in excess of (less than) the aggregate liabilities assumed.

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- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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