Restaurant Impairment, Closure Costs and Asset Disposals (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Property, Plant and Equipment Impairment or Disposal [Abstract]
Restaurant impairments	$ 194	$ 5,913
Closure costs and other	549	39
Loss on disposal of assets and other	273	134
Total	$ 1,016	$ 6,086