Goodwill and Other Intangible Assets - Schedule of Other Intangible Assets (Detail) - Successor - USD ($) $ in Thousands	Jan. 01, 2019	Jan. 02, 2018
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 28,567	$ 29,271
Accumulated Amortization	(10,060)	(7,773)
Net	18,507	21,498
Favorable lease assets
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	13,118	13,744
Accumulated Amortization	(5,542)	(4,442)
Net	7,576	9,302
Franchise rights
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	15,032	15,284
Accumulated Amortization	(4,411)	(3,282)
Net	10,621	12,002
Reacquired franchise rights
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	417	243
Accumulated Amortization	(107)	(49)
Net	$ 310	$ 194