Consolidated Statements of Income (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013		Mar. 25, 2012
Total revenues	$ 355,604		$ 331,276
General and administrative expenses	33,158		31,596
Other general expenses	1,185		5,674
Depreciation and amortization	8,537		7,927
Total costs and expenses	325,979		304,020
Operating income	29,625		27,256
Net interest income	672		264
Income before income taxes	30,297		27,520
Income tax expense	9,978		9,213
Net income, including redeemable noncontrolling interests	20,319		18,307
Income attributable to redeemable noncontrolling interests	(1,013)		(1,326)
Net income, net of redeemable noncontrolling interests	19,306	[1]	16,981	[1]
Basic earnings per common share	$ 0.87		$ 0.71
Earnings per common share - assuming dilution	$ 0.85		$ 0.69
Basic weighted average shares outstanding	22,256		24,053
Diluted weighted average shares outstanding	22,806		24,438
Domestic Company-owned Restaurant [Member]
Revenue from external customers	157,898		143,815
Cost of sales	37,073		32,456
Salaries and benefits	43,272		38,813
Advertising and related costs	14,793		12,699
Occupancy costs	8,711		7,898
Other operating expenses	22,745		20,418
Total costs and expenses	126,594		112,284
North America [Member]
Franchise royalties	20,733		20,518
Franchise and development fees	546		222
Domestic Commissaries [Member]
Revenue from external customers	143,894		137,610
All Others [Member]
Other sales	12,607		12,258
International [Member]
Royalties and franchise and development fees	5,067		4,486
Revenue from external customers	14,859		12,367
Operating expenses	12,653		10,392
Domestic Commissary and Other [Member]
Cost of sales	117,778		112,838
Salaries and benefits	10,067		9,003
Other operating expenses	16,007		14,306
Total costs and expenses	$ 143,852		$ 136,147

[1] Net income at March 31, 2013 and March 25, 2012 is net of $1,013 and $1,326, respectively, allocable to the redeemable noncontrolling interests for our joint venture arrangements.