Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 28, 2014	Dec. 29, 2013	Dec. 30, 2012
Operating activities
Net income before attribution to noncontrolling interests	$ 77,697	$ 72,979	$ 66,002
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for uncollectible accounts and notes receivable	1,795	1,921	1,674
Depreciation and amortization	39,965	35,105	32,798
Deferred income taxes	14,704	10,603	2,035
Stock-based compensation expense	8,712	7,409	6,905
Excess tax benefit on equity awards	(10,282)	(4,755)	(1,967)
Other	4,738	2,767	3,230
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable	(5,741)	(11,058)	(18,048)
Income taxes receivable	(9,527)
Inventories	(2,838)	(857)	(1,947)
Prepaid expenses	(4,394)	(1,553)	(2,572)
Other current assets	(387)	(1,458)	(1,667)
Other assets and liabilities	915	(3,728)	(3,952)
Accounts payable	3,171	3,029	(342)
Income and other taxes payable	5,233	(6,027)	6,460
Accrued expenses and other current liabilities	(665)	(2,536)	12,209
Deferred revenue	(464)	(481)	3,561
Net cash provided by operating activities	122,632	101,360	104,379
Investing activities
Purchases of property and equipment	(48,655)	(50,750)	(42,628)
Loans issued	(6,816)	(6,095)	(4,903)
Repayments of loans issued	4,254	7,068	3,642
Acquisitions, net of cash acquired	(4,773)		(6,175)
Proceeds from divestitures of restaurants	400		908
Other	556	339	36
Net cash used in investing activities	(55,034)	(49,438)	(49,120)
Financing activities
Net proceeds on line of credit facility	72,551	69,642	36,769
Cash dividends paid	(21,735)	(10,797)
Excess tax benefit on equity awards	10,282	4,755	1,967
Tax payments for equity award issuances	(9,235)	(3,584)	(855)
Proceeds from exercise of stock options	5,837	6,865	12,264
Acquisition of Company common stock	(117,400)	(118,569)	(106,095)
Contributions from noncontrolling interest holders	1,086	950	2,052
Distributions to noncontrolling interest holders	(2,800)	(3,650)	(4,256)
Other	491	(327)	225
Net cash used in financing activities	(60,923)	(54,715)	(57,929)
Effect of exchange rate changes on cash and cash equivalents	(223)	67	124
Change in cash and cash equivalents	6,452	(2,726)	(2,546)
Cash and cash equivalents at beginning of year	13,670	16,396	18,942
Cash and cash equivalents at end of year	$ 20,122	$ 13,670	$ 16,396