CONDENSED CONSOLIDATED STATEMENTS OF INCOME/(LOSS) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 29, 2021	Jun. 30, 2020	Jun. 29, 2021	Jun. 30, 2020
CONDENSED CONSOLIDATED STATEMENTS OF INCOME/(LOSS)
Revenues	$ 768,956	$ 295,851	$ 1,396,373	$ 910,957
Costs and expenses:
Cost of sales	168,944	72,139	304,819	213,044
Labor expenses	274,812	122,812	504,544	359,794
Other operating costs and expenses	199,495	121,675	381,028	289,645
General and administrative expenses	48,228	35,712	92,655	79,672
Depreciation and amortization expenses	22,223	22,590	44,229	46,152
Impairment of assets and lease terminations		2,433	594	194,329
Acquisition-related costs		1,068		2,304
Acquisition-related contingent consideration, compensation and amortization expenses/(benefit)	11,357	(965)	11,907	(5,431)
Preopening costs	2,779	2,097	6,635	5,216
Total costs and expenses	727,838	379,561	1,346,411	1,184,725
Income/(loss) from operations	41,118	(83,710)	49,962	(273,768)
Interest and other expense, net	(4,706)	(2,566)	(7,400)	(4,084)
Income/(loss) before income taxes	36,412	(86,276)	42,562	(277,852)
Income tax provision/(benefit)	2,697	(29,737)	4,979	(85,150)
Net income/(loss)	33,715	(56,539)	37,583	(192,702)
Dividends on Series A preferred stock	(13,591)	(3,694)	(18,661)	(3,694)
Direct and incremental Series A preferred stock issuance cost	0	(10,257)		(10,257)
Undistributed earnings allocated to Series A preferred stock	(3,051)		(3,123)
Net income/(loss) available to common stockholders	$ 17,073	$ (70,490)	$ 15,799	$ (206,653)
Net income/(loss) per common share:
Basic (in dollars per share)	$ 0.38	$ (1.61)	$ 0.35	$ (4.72)
Diluted (in dollars per share)	$ 0.37	$ (1.61)	$ 0.35	$ (4.72)
Weighted-average common shares outstanding:
Basic (in shares)	45,471	43,874	44,830	43,824
Diluted (in shares)	46,777	43,874	45,975	43,824