Acquisition Net Assets Acquired (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Business Acquisition [Line Items]
Goodwill	$ 38,053	$ 36,792
2018 Acquisitions [Member]
Business Acquisition [Line Items]
Inventory	252
Restaurant equipment	1,680
Restaurant equipment - subject to capital lease	19
Leasehold improvements	1,329
Franchise fees	971
Franchise rights	22,037
Favorable leases	587
Deferred income taxes	346
Goodwill	1,261
Capital lease obligations for restaurant equipment	(24)
Unfavorable leases	(624)
Accounts payable	(9)
Net assets acquired	$ 27,825
2017 Acquisitions [Member]
Business Acquisition [Line Items]
Trade and other receivables		486
Inventory		616
Prepaid expenses		192
Other assets		52
Restaurant equipment		3,290
Cap lease assets		264
Leasehold improvements		2,496
Franchise fees		1,315
Franchise rights		24,691
Favorable leases		1,100
Deferred taxes		4,357
Goodwill		13,923
Capital lease obligations for restaurant equipment		(316)
Unfavorable leases		(2,997)
Accounts payable		(880)
Accrued payroll, related taxes and benefits		(270)
Other liabilities, long-term		(1,682)
Net assets acquired		$ 37,923

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Amount of facility held for productive use including, but not limited to, office, production, storage and distribution facilities, acquired at the acquisition date.

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Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer, acquired at the acquisition date.

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Amount of liabilities incurred for goods and services received that are used in an entity's business and related party payables, assumed at the acquisition date.

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Amount of deferred tax asset attributable to deductible temporary differences and carryforwards acquired at the acquisition date.

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Amount of intangible assets, excluding goodwill, acquired at the acquisition date.

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The amount of inventory recognized as of the acquisition date.

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Amount recognized as of the acquisition date for the identifiable assets acquired in excess of (less than) the aggregate liabilities assumed.

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Amount after accumulated impairment loss 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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