Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 25, 2017	Jun. 26, 2016
Operating activities
Net income before attribution to noncontrolling interests	$ 54,881	$ 52,163
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for uncollectible accounts and notes receivable	(1,091)	247
Depreciation and amortization	21,111	19,775
Deferred income taxes	158	3,786
Stock-based compensation expense	5,571	4,893
Other	1,978	1,883
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable	(355)	6,680
Income taxes receivable	(45)	4,018
Inventories	550	(877)
Prepaid expenses	2,966	2,548
Other current assets	(372)	1,269
Other assets and liabilities	(1,559)	(1,724)
Accounts payable	(3,950)	(8,654)
Income and other taxes payable	1,275	3,703
Accrued expenses and other current liabilities	(3,002)	(11,425)
Deferred revenue	(253)	1,328
Net cash provided by operating activities	77,863	79,613
Investing activities
Purchases of property and equipment	(30,457)	(24,001)
Loans issued	(1,476)	(1,630)
Repayments of loans issued	2,125	5,382
Acquisitions, net of cash acquired	(21)	(11,202)
Other	25	165
Net cash used in investing activities	(29,804)	(31,286)
Financing activities
Net proceeds from issuance of long-term debt	5,156	61,375
Cash dividends paid	(14,703)	(13,130)
Tax payments for equity award issuances	(2,282)	(5,831)
Proceeds from exercise of stock options	5,218	2,812
Acquisition of Company common stock	(33,968)	(96,355)
Distributions to noncontrolling interest holders	(1,389)	(3,200)
Other	494	391
Net cash used in financing activities	(41,474)	(53,938)
Effect of exchange rate changes on cash and cash equivalents	99	(129)
Change in cash and cash equivalents	6,684	(5,740)
Cash and cash equivalents at beginning of period	15,563	21,006
Cash and cash equivalents at end of period	$ 22,247	$ 15,266