Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 25, 2016	Dec. 27, 2015
Operating activities
Net income before attribution to noncontrolling interests	$ 106,525	$ 109,092	$ 81,964
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for uncollectible accounts and notes receivable	29	409	1,232
Depreciation and amortization	43,668	40,987	40,307
Deferred income taxes	498	11,624	(6,246)
Stock-based compensation expense	10,413	10,123	9,423
Gain on refranchising		(11,572)
Impairment loss	1,674	1,350
Other	3,375	3,337	4,633
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable	(7,358)	1,557	(9,179)
Income tax receivable	(1,531)	4,100	19,406
Inventories	(5,485)	(3,639)	4,967
Prepaid expenses	(4,414)	(3,826)	(2,425)
Other current assets	(1,158)	616	829
Other assets and liabilities	(742)	(6,269)	620
Accounts payable	(8,743)	(916)	4,804
Income and other taxes payable	1,897	9	(1,113)
Accrued expenses and other current liabilities	(3,012)	(7,960)	21,201
Deferred revenue	(661)	1,235	40
Net cash provided by operating activities	134,975	150,257	170,463
Investing activities
Purchases of property and equipment	(52,593)	(55,554)	(38,972)
Loans issued	(8,103)	(3,210)	(4,741)
Repayments of loans issued	4,185	8,569	5,183
Acquisitions, net of cash acquired	(21)	(13,352)	(922)
Proceeds from divestitures of restaurants		16,844
Other	34	429	500
Net cash used in investing activities	(56,498)	(46,274)	(38,952)
Financing activities
Proceeds from issuance of term loan	400,000
Repayments of term loan	(5,000)
Net (repayments) proceeds of revolving credit facility	(225,575)	44,575	25,549
Debt issuance costs	(3,181)
Cash dividends paid	(30,720)	(27,896)	(24,844)
Tax payments for equity award issuances	(2,428)	(6,024)	(10,965)
Proceeds from exercise of stock options	6,260	7,060	5,197
Acquisition of Company common stock	(209,586)	(122,381)	(119,793)
Contributions from noncontrolling interest holders	2,956	690	684
Distributions to noncontrolling interest holders	(5,449)	(5,610)	(6,550)
Other	663	556	444
Net cash used in financing activities	(72,060)	(109,030)	(130,278)
Effect of exchange rate changes on cash and cash equivalents	365	(396)	(349)
Change in cash and cash equivalents	6,782	(5,443)	884
Cash and cash equivalents at beginning of period	15,563	21,006	20,122
Cash and cash equivalents at end of period	$ 22,345	$ 15,563	$ 21,006