Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

+ Details

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ 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 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

The amount of cash received during the period on settlement of a hedge.

+ References

No definition available.

+ Details

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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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Derivative Financial Instruments and Hedging Activities (Cash Flow Hedges) (Details) - USD ($)	3 Months Ended
	Feb. 28, 2018	Aug. 31, 2018	Aug. 31, 2016
Senior Notes \| 3.950% Senior Notes
Derivative [Line Items]
Stated interest rate	3.95%	3.95%	3.95%
Cash Flow Hedges \| Anticipated Debt Issuance
Derivative [Line Items]
Aggregate notional amount			$ 200,000,000
Fair value of cash received for settlement of swaps	$ 17,200,000
Cash Flow Hedges \| Term Loan Facility
Derivative [Line Items]
Aggregate notional amount			200,000,000
Interest Rate Swaps \| Cash Flow Hedges
Derivative [Line Items]
Aggregate notional amount			$ 350,000,000.0