Goodwill and other Intangible Assets - Schedule of Other Intangible Assets (Detail) - USD ($) $ in Thousands	Mar. 26, 2019	Jan. 01, 2019
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 16,452	$ 28,567
Accumulated Amortization	(4,761)	(10,060)
Net	11,691	18,507
Favorable Lease Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	0	13,118
Accumulated Amortization	0	(5,542)
Net	0	7,576
Unfavorable Sublease Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,090	0
Accumulated Amortization	(22)	0
Net	1,068	0
Franchise rights [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	14,562	15,032
Accumulated Amortization	(4,609)	(4,411)
Net	9,953	10,621
Other Finite Lived Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	800	417
Accumulated Amortization	(130)	(107)
Net	$ 670	$ 310