Goodwill and other Intangible Assets - Schedule of Other Intangible Assets (Detail) - USD ($) $ in Thousands	Sep. 10, 2019	Jan. 01, 2019
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 16,410	$ 28,567
Accumulated Amortization	(5,361)	(10,060)
Net	11,049	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	(56)	0
Net	1,034	0
Franchise rights [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	14,377	15,032
Accumulated Amortization	(5,131)	(4,411)
Net	9,246	10,621
Other Finite Lived Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	943	417
Accumulated Amortization	(174)	(107)
Net	$ 769	$ 310