Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 30, 2015	Dec. 31, 2014	Dec. 25, 2013
Revenue:
Company restaurant sales	$ 353,073	$ 334,684	$ 328,334
Franchise and license revenue	138,220	137,611	134,259
Total operating revenue	491,293	472,295	462,593
Costs of company restaurant sales:
Product costs	89,660	86,825	85,540
Payroll and benefits	136,626	133,280	131,305
Occupancy	20,443	20,845	21,519
Other operating expenses	47,628	47,858	45,192
Total costs of company restaurant sales	294,357	288,808	283,556
Costs of franchise and license revenue	43,345	44,761	46,109
General and administrative expenses	66,602	58,907	56,835
Depreciation and amortization	21,472	21,218	21,501
Operating (gains), losses and other charges, net	2,366	1,270	7,071
Total operating costs and expenses, net	428,142	414,964	415,072
Operating income	63,151	57,331	47,521
Interest expense, net	9,283	9,182	10,282
Other nonoperating expense (income), net	139	(612)	1,139
Net income before income taxes	53,729	48,761	36,100
Provision for income taxes	17,753	16,036	11,528
Net income	$ 35,976	$ 32,725	$ 24,572
Basic net income per share	$ 0.44	$ 0.38	$ 0.27
Diluted net income per share	$ 0.42	$ 0.37	$ 0.26
Basic weighted average shares outstanding	82,627	86,323	90,829
Diluted weighted average shares outstanding	84,729	88,355	92,903