System Optimization Gains, Net Assets Held for Sale (Details) $ in Thousands	12 Months Ended
	Dec. 28, 2014 USD ($) Restaurant	Jan. 03, 2016 USD ($) Restaurant
Long Lived Assets Held-for-sale [Line Items]
Significant Changes, Franchises Sold | Restaurant	255
Restaurant assets held for sale [Member]
Long Lived Assets Held-for-sale [Line Items]
Number of restaurants classified as held for sale | Restaurant	106	99
Disposal Group, Including Discontinued Operation, Assets | $	$ 25,266	$ 50,262
Other assets held for sale [Member]
Long Lived Assets Held-for-sale [Line Items]
Disposal Group, Including Discontinued Operation, Assets | $	$ 13,469	$ 7,124