Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property.

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Amount of increase (decrease) 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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The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale.

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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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The number of franchises sold during the period when there are significant changes in franchisor-owned outlets or franchised outlets during the period.

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Cash Proceeds from Post Closing Adjustments, Net of Payments

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- Definition

Approximate Company-operated restaurant ownership percentage

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Net Assets Sold

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Post Closing Adjustments on Sales of Restaurants

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Recognition of deferred gain on sale of property

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System Optimization Gains, Net Summary of Disposition Activity (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 29, 2019 USD ($)	Sep. 30, 2018 USD ($)	Sep. 29, 2019 USD ($) number_of_restaurants	Sep. 30, 2018 USD ($) number_of_restaurants	Jan. 01, 2017
System optimization gains, net
Company-operated restaurant ownership percentage					5.00%
System optimization gains, net	$ 1,040	$ 486	$ 1,162	$ 8
Proceeds from sales			$ 2,038	$ 2,863
Sale of Company-operated restaurants to franchisees
System optimization gains, net
Significant Changes, Franchises Sold \| number_of_restaurants			0	3
System optimization gains, net	0	0	$ 0	$ 89
Post closing adjustments on sales of restaurants	1,033	279	1,087	54
Proceeds from sales				1,436
Net Assets Sold				1,139
Goodwill, Period Increase (Decrease)				(208)
Recognition of deferred gain on sale of property	911	503	$ 911	503
Cash proceeds from post closing adjustments, net of payments				$ 6
Sale of franchise-operated restaurant to franchisee
System optimization gains, net
Significant Changes, Franchises Sold \| number_of_restaurants			3	73
Sale of Other Assets
System optimization gains, net
System optimization gains, net	7	207	$ 75	$ (135)
Proceeds from sales	$ 798	$ 1,049	$ 2,038	$ 1,421