Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 26, 2016	Jun. 28, 2015
Operating activities
Net income before attribution to noncontrolling interests	$ 52,163	$ 36,707
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for uncollectible accounts and notes receivable	247	631
Depreciation and amortization	19,775	20,177
Deferred income taxes	3,786	(3,064)
Stock-based compensation expense	4,893	4,985
Other	1,883	2,239
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable	6,680	1,682
Income taxes receivable	(472)	(1,281)
Inventories	(877)	3,474
Prepaid expenses	2,548	999
Other current assets	1,269	293
Other assets and liabilities	(1,724)	(773)
Accounts payable	(8,654)	(3,877)
Income and other taxes payable	3,703	72
Accrued expenses and other current liabilities	(11,425)	15,495
Deferred revenue	1,328	223
Net cash provided by operating activities	75,123	77,982
Investing activities
Purchases of property and equipment	(24,001)	(16,501)
Loans issued	(1,630)	(1,571)
Repayments of loans issued	5,382	2,787
Acquisitions, net of cash acquired	(11,202)	(491)
Other	165	348
Net cash used in investing activities	(31,286)	(15,428)
Financing activities
Net proceeds from issuance of long-term debt	61,375	3,549
Cash dividends paid	(13,130)	(11,083)
Excess tax benefit on equity awards	4,490	9,488
Tax payments for equity award issuances	(5,831)	(10,654)
Proceeds from exercise of stock options	2,812	3,915
Acquisition of Company common stock	(96,355)	(52,083)
Distributions to noncontrolling interest holders	(3,200)	(3,667)
Other	391	319
Net cash used in financing activities	(49,448)	(60,216)
Effect of exchange rate changes on cash and cash equivalents	(129)	(13)
Change in cash and cash equivalents	(5,740)	2,325
Cash and cash equivalents at beginning of period	21,006	20,122
Cash and cash equivalents at end of period	$ 15,266	$ 22,447