Restaurant Impairment, Closure Costs and Asset Disposals Restaurant Impairment, Closure Costs and Asset Disposals (Details) $ in Thousands	3 Months Ended
	Apr. 04, 2017 USD ($) restaurant	Mar. 29, 2016 USD ($) restaurant
Property, Plant and Equipment Impairment or Disposal [Abstract]
Restaurant impairments	$ 1,935	$ 194
Costs related to closure of restaurants	19,886	549
Loss on disposal of assets and other	233	273
Asset Disposals, Closure Costs and Restaurant Impairments	$ 22,054	$ 1,016
Number of restaurants impaired during the comparable periods | restaurant	4	1
Closure costs recognized	$ 19,900	$ 500
Number of restaurants closed | restaurant	55