CONDENSED CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 27, 2016	Sep. 29, 2015	Sep. 27, 2016	Sep. 29, 2015
CONDENSED CONSOLIDATED STATEMENTS OF INCOME
Revenues	$ 560,018	$ 526,688	$ 1,672,573	$ 1,573,768
Costs and expenses:
Cost of sales	128,838	125,605	386,544	378,840
Labor expenses	186,567	172,101	557,436	511,765
Other operating costs and expenses	134,877	128,427	396,414	375,537
General and administrative expenses	36,057	33,277	107,179	101,697
Depreciation and amortization expenses	21,634	21,317	64,559	63,652
Impairment of assets and lease terminations		6,011		6,011
Preopening costs	1,982	4,306	6,594	9,815
Total costs and expenses	509,955	491,044	1,518,726	1,447,317
Income from operations	50,063	35,644	153,847	126,451
Interest and other expense, net	(2,477)	(722)	(6,962)	(4,049)
Income before income taxes	47,586	34,922	146,885	122,402
Income tax provision	13,012	8,746	39,772	33,079
Net income	$ 34,574	$ 26,176	$ 107,113	$ 89,323
Net income per share:
Basic (in dollars per share)	$ 0.72	$ 0.54	$ 2.22	$ 1.83
Diluted (in dollars per share)	$ 0.70	$ 0.52	$ 2.16	$ 1.76
Weighted average shares outstanding:
Basic (in shares)	47,815	48,848	48,188	48,841
Diluted (in shares)	49,212	50,637	49,604	50,660
Cash dividends declared per common share (in dollars per share)	$ 0.24	$ 0.20	$ 0.64	$ 0.53