Consolidated Statements Of Comprehensive Loss - USD ($)	3 Months Ended		6 Months Ended
	Jul. 03, 2022	Jul. 04, 2021	Jul. 03, 2022	Jul. 04, 2021
Revenues:
Revenue	$ 441,945,000	$ 424,541,000	$ 841,421,000	$ 814,534,000
Costs and expenses:
Food, beverage and packaging costs	140,175,000	126,424,000	263,232,000	240,214,000
Restaurant wages and related expenses	149,315,000	137,592,000	290,935,000	267,238,000
Restaurant rent expense (Note 7)	31,230,000	30,591,000	62,243,000	60,905,000
Other restaurant operating expenses	69,032,000	65,128,000	134,439,000	126,547,000
Advertising expense	17,641,000	16,939,000	33,605,000	32,308,000
General and administrative expenses	20,827,000	20,698,000	42,844,000	42,067,000
Depreciation and amortization	20,071,000	20,421,000	39,613,000	41,030,000
Impairment and other lease charges	18,176,000	144,000	18,672,000	497,000
Other expense, net	439,000	715,000	641,000	942,000
Total operating expenses	466,906,000	418,652,000	886,224,000	811,748,000
Income (loss) from operations	(24,961,000)	5,889,000	(44,803,000)	2,786,000
Gain (Loss) on Extinguishment of Debt	0	8,538,000	0	8,538,000
Interest expense	7,636,000	6,942,000	15,072,000	13,668,000
Loss before income taxes	(32,597,000)	(9,591,000)	(59,875,000)	(19,420,000)
Provision (benefit) for income taxes	(6,121,000)	(32,000)	(12,130,000)	(2,693,000)
Net loss	$ (26,476,000)	$ (9,559,000)	$ (47,745,000)	$ (16,727,000)
Basic net income (loss) per share (in dollars per share)	$ (0.52)	$ (0.19)	$ (0.94)	$ (0.34)
Diluted net income (loss) per share (in shares)	$ (0.52)	$ (0.19)	$ (0.94)	$ (0.34)
Weighted average common shares outstanding:
Weighted average common shares outstanding (in shares)	50,795,328	49,917,296	50,634,008	49,870,718
Shares used in computing diluted net income (loss) per share (in shares)	50,795,328	49,917,296	50,634,008	49,870,718
Other comprehensive income (loss), net of tax:
Net loss	$ (26,476,000)	$ (9,559,000)	$ (47,745,000)	$ (16,727,000)
Change in valuation of interest rate swap (Note 8)	595,000	(504,000)	4,877,000	2,655,000
Comprehensive loss	$ (25,881,000)	$ (10,063,000)	$ (42,868,000)	$ (14,072,000)