Consolidated Statements Of Operations And Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
	Jan. 03, 2021	Dec. 29, 2019	Dec. 30, 2018
Gain on insurance recoveries	$ 2,100	$ 200	$ 400
Revenue	1,547,502	1,462,765	1,179,307
Costs and expenses:
Cost of sales	452,738	431,969	326,308
Restaurant wages and related expenses	498,127	485,278	382,829
Restaurant rent expense	118,444	107,147	81,409
Other restaurant operating expenses	236,059	227,364	178,750
Advertising expense	60,735	58,689	48,340
General and administrative	84,051	84,734	66,587
Depreciation and amortization	81,727	74,674	58,468
Impairment and other lease charges	12,778	3,564	3,685
Other expense (income)	(1,271)	(1,911)	(424)
Total operating expenses	1,543,388	1,471,508	1,145,952
Income (loss) from operations	4,114	(8,743)	33,355
Interest Expense	27,283	27,856	23,638
Gain on bargain purchase	0	0	(230)
Loss on extinguishment of debt	0	7,443	0
Income (loss) before income taxes	(23,169)	(44,042)	9,947
Provision (benefit) for income taxes	6,294	(12,123)	(157)
Net income (loss)	$ (29,463)	$ (31,919)	$ 10,104
Basic and diluted net income (loss) per share	$ (0.58)	$ (0.74)	$ 0.22
Basic weighted average common shares outstanding	50,751,185	43,421,715	35,715,372
Diluted weighted average common shares outstanding	50,751,185	43,421,715	45,319,971
Other comprehensive income (loss), net of tax:
Net income (loss)	$ (29,463)	$ (31,919)	$ 10,104
Change in postretirement benefit obligations, net of tax	(5,284)	1,268	564
Comprehensive income (loss)	(34,747)	(30,651)	10,668
Restaurant sales
Revenue	1,547,502	1,452,516	1,179,307
Other revenue
Revenue	$ 0	$ 10,249	$ 0