Fair Value Measurements (Narrative) (Details) - Fair Value, Measurements, Nonrecurring [Member] - USD ($)	3 Months Ended	9 Months Ended
May 31, 2016	May 31, 2015	May 31, 2016	May 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value adjustment, assets	$ 0	$ 0	$ 0	$ 0
Fair value adjustment, liabilitites	$ 0	$ 0	$ 0	$ 0

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.

No definition available.

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