CONDENSED CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jul. 02, 2019	Jun. 30, 2020	Jul. 02, 2019
CONDENSED CONSOLIDATED STATEMENTS OF INCOME
Revenues	$ 295,851	$ 602,645	$ 910,957	$ 1,202,126
Costs and expenses:
Cost of sales	72,139	134,438	213,044	270,625
Labor expenses	122,812	217,921	359,794	435,231
Other operating costs and expenses	121,675	149,106	289,645	302,327
General and administrative expenses	35,712	37,247	79,672	76,370
Depreciation and amortization expenses	22,590	21,659	46,152	43,021
Impairment of assets and lease terminations	2,433		194,329
Acquisition-related costs	1,068		2,304
Acquisition-related contingent consideration, compensation and amortization	(965)		(5,431)
Preopening costs	2,097	2,175	5,216	4,305
Total costs and expenses	379,561	562,546	1,184,725	1,131,879
(Loss)/income from operations	(83,710)	40,099	(273,768)	70,247
Loss on investments in unconsolidated affiliates		(1,644)		(3,094)
Interest and other expense, net	(2,566)	(25)	(4,084)	(23)
(Loss)/income before income taxes	(86,276)	38,430	(277,852)	67,130
Income tax (benefit)/provision	(29,737)	2,920	(85,150)	4,636
Net (loss)/income	$ (56,539)	$ 35,510	$ (192,702)	$ 62,494
Net (loss)/income per common share (Note 11):
Basic (in dollars per share)	$ (1.61)	$ 0.80	$ (4.72)	$ 1.41
Diluted (in dollars per share)	$ (1.61)	$ 0.79	$ (4.72)	$ 1.39
Weighted-average common shares outstanding:
Basic (in shares)	43,874	44,165	43,824	44,210
Diluted (in shares)	43,874	44,786	43,824	44,871