System Optimization Gains, Net System Optimization Restaurant Assets Held-for-sale (Details) $ in Thousands	Jun. 28, 2015 USD ($) stores	Mar. 29, 2015 USD ($)	Dec. 28, 2014 USD ($) stores	[1]
Long Lived Assets Held-for-sale [Line Items]
Number of Restaurants Classified as Assets Held for Sale | stores	97		106
Restaurant assets held for sale [Member]
Long Lived Assets Held-for-sale [Line Items]
Assets held for sale		$ 37,050	$ 25,266
Other assets held for sale [Member]
Long Lived Assets Held-for-sale [Line Items]
Assets held for sale	$ 8,381		$ 13,469

[1] Reclassifications have been made to the prior year presentation to include restaurants previously excluded from our system optimization initiative to conform to the current year presentation. See Note 1 for further details.