Goodwill and Other Intangible Assets - Other Intangible Assets (Details) - USD ($) $ in Thousands	Mar. 25, 2018	Dec. 31, 2017	Mar. 26, 2017
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Accumulated Amortization	$ (1,842)	$ (1,827)	$ (1,233)
Total other intangible assets, gross carrying amount	39,552	39,891	38,957
Total other intangibe assets, net carrying value	37,710	38,064	37,724
License / Franchise Agreements [Member]
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Gross Carrying Amount	3,364	3,360	3,301
Accumulated Amortization	(1,842)	(1,827)	(1,233)
Net Carrying Value	1,522	1,533	2,068
Trade Names [Member]
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Carrying Amount/Value	$ 36,188	$ 36,531	$ 35,656