Goodwill and other Intangible Assets - Schedule of Other Intangible Assets (Detail) - USD ($) $ in Thousands	Mar. 28, 2017	Jan. 03, 2017
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 29,826	$ 29,826
Accumulated Amortization	(5,796)	(5,044)
Net	24,030	24,782
Favorable Lease Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	14,176	14,176
Accumulated Amortization	(3,429)	(2,996)
Net	10,747	11,180
Franchise rights [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	15,489	15,489
Accumulated Amortization	(2,349)	(2,038)
Net	13,140	13,451
Other Finite Lived Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	161	161
Accumulated Amortization	(18)	(10)
Net	$ 143	$ 151