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Significant Accounting Policies - Concentration of Credit Risk (Details) - Customer Concentration Risk - Receivables	12 Months Ended
	Aug. 31, 2019	Aug. 31, 2018	Aug. 31, 2017
One Customer
Concentration Risk [Line Items]
Portion of receivables (percent)	10.00%	10.00%
Two Customers
Concentration Risk [Line Items]
Portion of receivables (percent)			10.00%

X

- 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

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
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