Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 26, 2017	Mar. 27, 2016
Operating activities
Net income before attribution to noncontrolling interests	$ 29,899	$ 28,051
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for uncollectible accounts and notes receivable	(417)	216
Depreciation and amortization	10,457	9,744
Deferred income taxes	1,015	7,141
Stock-based compensation expense	2,736	2,172
Other	769	1,101
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable	(1,048)	6,457
Income taxes receivable	2,372	4,107
Inventories	2,425	(612)
Prepaid expenses	3,574	1,938
Other current assets	(134)	(314)
Other assets and liabilities	(1,577)	(614)
Accounts payable	(5,239)	(10,007)
Income and other taxes payable	7,817	277
Accrued expenses and other current liabilities	(5,164)	(16,738)
Deferred revenue	(156)	934
Net cash provided by operating activities	47,329	33,853
Investing activities
Purchases of property and equipment	(15,064)	(10,249)
Loans issued	(715)	(917)
Repayments of loans issued	863	1,275
Acquisitions, net of cash acquired	(21)	(11,202)
Other	7	159
Net cash used in investing activities	(14,930)	(20,934)
Financing activities
Net (repayments) proceeds from issuance of long-term debt	(5,575)	61,500
Cash dividends paid	(7,354)	(6,628)
Tax payments for equity award issuances	(2,259)	(5,670)
Proceeds from exercise of stock options	3,248	922
Acquisition of Company common stock	(13,075)	(66,033)
Distributions to noncontrolling interest holders	(702)	(980)
Other	396	294
Net cash used in financing activities	(25,321)	(16,595)
Effect of exchange rate changes on cash and cash equivalents	74	(58)
Change in cash and cash equivalents	7,152	(3,734)
Cash and cash equivalents at beginning of period	15,563	21,006
Cash and cash equivalents at end of period	$ 22,715	$ 17,272