Impairment of Long-Lived Assets (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Oct. 02, 2016	Sep. 27, 2015	Oct. 02, 2016	Sep. 27, 2015	Jan. 03, 2016
Impaired Long-Lived Assets Held and Used [Line Items]
Impairment of long-lived assets	$ 361	$ 1,513	$ 12,991	$ 13,468	$ 25,001
Restaurants leased or subleased to franchisees
Impaired Long-Lived Assets Held and Used [Line Items]
Impairment of long-lived assets	163	1,235	12,654	9,491
Company-owned restaurants
Impaired Long-Lived Assets Held and Used [Line Items]
Impairment of long-lived assets	79	219	114	2,766
Surplus properties
Impaired Long-Lived Assets Held and Used [Line Items]
Impairment of long-lived assets	$ 119	$ 59	$ 223	$ 1,211