Goodwill and Other Intangible Assets - Other Intangible Assets (Details) - USD ($) $ in Thousands	Sep. 24, 2017	Dec. 31, 2016	Sep. 25, 2016
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Carrying Amount/Value	$ 36,794	$ 35,603	$ 35,866
Accumulated Amortization	(1,623)	(1,092)	(911)
Total other intangible assets, gross carrying amount	40,155	38,929	37,341
Total other intangibe assets, net carrying value	38,532	37,837	36,430
License / Franchise Agreements [Member]
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Gross Carrying Amount	3,361	3,326	1,475
Accumulated Amortization	(1,623)	(1,092)	(911)
Net Carrying Value	$ 1,738	$ 2,234	$ 564