Acquisition Table of 2016 Acquisitions (Details) $ in Thousands	3 Months Ended							12 Months Ended
	Jan. 01, 2017	Oct. 02, 2016	Jul. 03, 2016	Apr. 03, 2016	Jan. 03, 2016	Sep. 27, 2015	Jun. 28, 2015	Jan. 01, 2017 USD ($)	Jan. 03, 2016 USD ($)	Dec. 28, 2014 USD ($)	Dec. 30, 2012
Business Acquisition [Line Items]
Properties purchased for sale-leaseback, number								15
Restaurants Acquired	27	11	6	12	46	5	4	56	55	123	278
Payments to Acquire Businesses, Net of Cash Acquired								$ 48,088	$ 52,750	$ 52,200
Proceeds from sale-leaseback transactions								$ 53,599	$ 9,148	$ 19,565
2016 Acquisitions [Member]
Business Acquisition [Line Items]
Properties sold in sale-leaseback transactions								14
Proceeds from sale-leaseback transactions								$ 19,100
February 23, 2016 Acquisition [Member]
Business Acquisition [Line Items]
Restaurants Acquired								12
Payments to Acquire Businesses, Net of Cash Acquired								$ 7,127
May 25, 2016 Acquisition [Member]
Business Acquisition [Line Items]
Properties purchased for sale-leaseback, number								5
Restaurants Acquired								6
Payments to Acquire Businesses, Net of Cash Acquired								$ 12,080
July 14, 2016 Acquisition [Member]
Business Acquisition [Line Items]
Properties purchased for sale-leaseback, number								3
Restaurants Acquired								4
Payments to Acquire Businesses, Net of Cash Acquired								$ 5,445
August 23, 2016 Acquisition [Member]
Business Acquisition [Line Items]
Properties purchased for sale-leaseback, number								6
Restaurants Acquired								7
Payments to Acquire Businesses, Net of Cash Acquired								$ 8,755
October 4, 2016 Acquisition [Member]
Business Acquisition [Line Items]
Restaurants Acquired								3
Payments to Acquire Businesses, Net of Cash Acquired								$ 1,623
November 15, 2016 Acquisition [Member]
Business Acquisition [Line Items]
Restaurants Acquired								17
Payments to Acquire Businesses, Net of Cash Acquired								$ 7,251
December 1, 2016 Acquisition [Member]
Business Acquisition [Line Items]
Properties purchased for sale-leaseback, number								1
Restaurants Acquired								7
Payments to Acquire Businesses, Net of Cash Acquired								$ 5,807