Refranchising Initiative (Narrative) (Details)	3 Months Ended
Nov. 30, 2016 franchise
Refranchising Initiative 2017 [Member]
Franchisor Disclosure [Line Items]
Refranchised Company Drive-Ins	56

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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