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Fair Value Measurements (Narrative) (Details) - USD ($) $ in Millions	Nov. 30, 2022	May 31, 2022
Senior Notes, Series A [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of long-term borrowings	$ 392.5	$ 404.1
Senior Notes, Series B [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of long-term borrowings	$ 389.5	$ 402.5

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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

Fair value portion of notes payable.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19,20,22)
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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