Condensed Consolidated Statements of Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 24, 2020	Jun. 26, 2019	Jun. 24, 2020	Jun. 26, 2019
Revenue
Total revenue	$ 99,604	$ 113,740	$ 204,767	$ 222,717
Cost of operations
Food and paper cost	22,873	27,886	48,435	55,038
Labor and related expenses	25,759	29,272	54,452	58,848
Occupancy and other operating expenses	21,922	23,032	44,031	46,259
Company restaurant expenses	70,554	80,190	146,918	160,145
General and administrative expenses	10,465	9,348	19,796	20,696
Franchise expenses	6,627	7,542	13,538	13,686
Depreciation and amortization	4,168	4,454	8,537	9,215
Loss on disposal of assets	27	134	127	178
Recovery of securities lawsuits related legal expenses and other insurance claims	(123)	(10,000)	(123)	(10,000)
Impairment and closed-store reserves	437	565	2,839	874
Loss on disposition of restaurants		927		5,051
Total expenses	92,155	93,160	191,632	199,845
Income from operations	7,449	20,580	13,135	22,872
Interest expense, net	908	922	1,813	1,781
Income tax receivable agreement expense (income)	290	(94)	170	77
Income before provision for income taxes	6,251	19,752	11,152	21,014
Provision for income taxes	752	5,665	2,053	6,014
Net income	$ 5,499	$ 14,087	$ 9,099	$ 15,000
Net income per share
Basic (usd per share)	$ 0.16	$ 0.37	$ 0.26	$ 0.39
Diluted (usd per share)	$ 0.16	$ 0.37	$ 0.26	$ 0.38
Weighted-average shares used in computing net income per share
Basic (shares)	34,836,410	37,939,912	34,747,785	38,296,807
Diluted (shares)	35,410,198	38,580,722	35,382,607	39,043,477
Company-operated restaurant revenue
Revenue
Total revenue	$ 87,707	$ 100,139	$ 180,341	$ 197,289
Franchise revenue
Revenue
Total revenue	6,719	7,918	13,781	14,362
Franchise advertising fee revenue
Revenue
Total revenue	$ 5,178	$ 5,683	$ 10,645	$ 11,066