CONDENSED CONSOLIDATED STATEMENTS OF INCOME/(LOSS) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 28, 2021	Sep. 29, 2020	Sep. 28, 2021	Sep. 29, 2020
CONDENSED CONSOLIDATED STATEMENTS OF INCOME/(LOSS)
Revenues	$ 754,474	$ 517,716	$ 2,150,847	$ 1,428,673
Costs and expenses:
Cost of sales	169,418	118,093	474,237	331,137
Labor expenses	279,957	200,666	784,501	560,460
Other operating costs and expenses	201,490	159,095	582,518	448,740
General and administrative expenses	45,802	37,795	138,457	117,467
Depreciation and amortization expenses	22,576	22,651	66,805	68,803
Impairment of assets and lease terminations		10,402	594	204,731
Acquisition-related costs		39		2,343
Acquisition-related contingent consideration, compensation and amortization expenses/(benefit)	685	1,439	12,592	(3,992)
Preopening costs	3,169	2,394	9,804	7,610
Total costs and expenses	723,097	552,574	2,069,508	1,737,299
Income/(loss) from operations	31,377	(34,858)	81,339	(308,626)
Interest and other expense, net	(1,794)	(2,935)	(9,194)	(7,019)
Income/(loss) before income taxes	29,583	(37,793)	72,145	(315,645)
Income tax (benefit)/ provision	(3,097)	(9,447)	1,882	(94,597)
Net income/(loss)	32,680	(28,346)	70,263	(221,048)
Dividends on Series A preferred stock		(4,838)	(18,661)	(8,532)
Direct and incremental Series A preferred stock issuance cost				(10,257)
Undistributed earnings allocated to Series A preferred stock			(5,804)
Net income/(loss) available to common stockholders	$ 32,680	$ (33,184)	$ 45,798	$ (239,837)
Net income/(loss) per common share:
Basic (in dollars per share)	$ 0.65	$ (0.76)	$ 0.98	$ (5.47)
Diluted (in dollars per share)	$ 0.64	$ (0.76)	$ 0.96	$ (5.47)
Weighted-average common shares outstanding:
Basic (in shares)	50,212	43,900	46,624	43,849
Diluted (in shares)	51,113	43,900	47,675	43,849