GOODWILL AND OTHER IDENTIFIABLE INTANGIBLE ASSETS - Impairment Testing (Details) $ in Millions	12 Months Ended
May 31, 2020 USD ($)
GOODWILL AND OTHER IDENTIFIABLE INTANGIBLE ASSETS
Goodwill impairment	$ 0.0
Non-amortizing intangible assets impairment	$ 0.0

Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-Publisher FASB
-Name Accounting Standards Codification
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