Impairment of Long-Lived Assets (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 02, 2017	Apr. 03, 2016
Impaired Long-Lived Assets Held and Used [Line Items]
Impairment of long-lived assets	$ 510	$ 7,105
Restaurants leased or subleased to franchisees
Impaired Long-Lived Assets Held and Used [Line Items]
Impairment of long-lived assets	0	7,001
Company-operated restaurants
Impaired Long-Lived Assets Held and Used [Line Items]
Impairment of long-lived assets	17	0
Surplus properties
Impaired Long-Lived Assets Held and Used [Line Items]
Impairment of long-lived assets	$ 493	$ 104