Amount of deferred gain on real estate option recorded during the period

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Gain (loss) on real estate option exercised during the period

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Number of Company Drive-Ins refranchised during the period

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Amount of addition (reduction) to the amount at which an asset could be incurred (settled) in a current transaction between willing parties.

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Amount before tax of gain (loss) recognized on the sale or disposal of a disposal group. Excludes discontinued operations.

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Amount of divestiture of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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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.

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An amount representing an agreement for an unconditional promise by the maker to pay the Entity (holder) a definite sum of money at a future date(s) within one year of the balance sheet date or the normal operating cycle, whichever is longer. Such amount may include accrued interest receivable in accordance with the terms of the debt. The debt also may contain provisions including a discount or premium, payable on demand, secured, or unsecured, interest bearing or noninterest bearing, among a myriad of other features and characteristics. This amount does not include amounts related to receivables held-for-sale.

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The cash inflow associated with the collection of receivables arising from the lease of real estate, equipment or other fixed assets for a specified time in exchange for payment, usually in the form of rent; excludes proceeds from sales-type lease transactions, which are classified as operating activities.

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The cash inflow from the sale of land held for use; excludes sales of land held as inventory or investments.

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The cash inflow from the sale of property, plant and equipment (capital expenditures), software, and other intangible assets.

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Amount of divestiture of long-lived, physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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Refranchising Initiative Summary of the pretax activity recorded as a result of the refranchising initiative (Details) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	May 31, 2017 USD ($) franchise	Nov. 30, 2016 franchise	May 31, 2017 USD ($) franchise	May 31, 2016 USD ($)	Aug. 31, 2016 USD ($) franchise
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of refranchised Company Drive-Ins \| franchise					38
Proceeds from sales of Company Drive-Ins			$ 62,393	$ 12,701
Current accounts and notes receivable, gross	$ 41,456		$ 41,456		$ 36,404
Refranchising Initiative 2016 [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of refranchised Company Drive-Ins \| franchise					29
Proceeds from sales of Company Drive-Ins					$ 3,568
Goodwill related to sales of Company Drive-Ins					(194)
Refranchising initiative gains (losses), net					972
Refranchising Initiative 2017 [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of refranchised Company Drive-Ins \| franchise	0	53	110
Proceeds from sales of Company Drive-Ins	$ 0		$ 20,036
Proceeds from sale of real estate	4,749		4,749
Initial and subsequent lease payments for real estate option	195		(3,201)
Goodwill related to sales of Company Drive-Ins	0		(966)
Deferred gain for real estate option	141		(899)
Gain (loss) on assets held for sale	0		(65)
Refranchising initiative gains (losses), net	814		6,645
Gain (loss) on real estate option	400
Proceeds from sale of real estate [Member] \| Refranchising Initiative 2017 [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Current accounts and notes receivable, gross	6,977		6,977
Land and Building [Member] \| Refranchising Initiative 2017 [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Assets sold	(12,095)		(12,095)
Equipment [Member] \| Refranchising Initiative 2016 [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Assets sold					$ (2,402)
Equipment [Member] \| Refranchising Initiative 2017 [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Assets sold	$ 847		$ (7,891)