CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jul. 02, 2013	Jul. 03, 2012	Jul. 02, 2013	Jul. 03, 2012
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
Revenues	$ 470,118	$ 454,749	$ 933,136	$ 890,503
Costs and expenses:
Cost of sales	112,947	111,019	227,240	218,617
Labor expenses	151,162	146,086	302,145	289,066
Other operating costs and expenses	113,805	108,870	224,783	214,758
General and administrative expenses	27,811	26,278	56,600	54,943
Depreciation and amortization expenses	19,215	18,509	38,445	36,807
Impairment of assets and lease terminations	1,505		2,149
Preopening costs	2,503	3,017	3,817	5,123
Total costs and expenses	428,948	413,779	855,179	819,314
Income from operations	41,170	40,970	77,957	71,189
Interest and other expense, net	(1,271)	(838)	(2,581)	(1,986)
Income before income taxes	39,899	40,132	75,376	69,203
Income tax provision	11,316	11,733	21,501	20,082
Net income	$ 28,583	$ 28,399	$ 53,875	$ 49,121
Net income per share:
Basic (in dollars per share)	$ 0.54	$ 0.53	$ 1.02	$ 0.92
Diluted (in dollars per share)	$ 0.52	$ 0.52	$ 0.99	$ 0.89
Weighted average shares outstanding:
Basic (in shares)	52,892	53,155	52,574	53,417
Diluted (in shares)	55,073	55,091	54,692	55,376
Cash dividends declared per common share (in dollars per share)	$ 0.12		$ 0.24