Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 29, 2015	Mar. 30, 2014
Operating activities
Net income before attribution to noncontrolling interests	$ 24,239	$ 20,541
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for uncollectible accounts and notes receivable	659	145
Depreciation and amortization	10,041	9,164
Deferred income taxes	5,055	6,170
Stock-based compensation expense	2,264	2,190
Excess tax benefit on equity awards	(5,091)	(4,900)
Other	1,180	1,110
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable	(1,312)	(854)
Income taxes receivable	5,899
Inventories	1,043	(3,210)
Prepaid expenses	2,755	1,919
Other current assets	(303)	(204)
Other assets and liabilities	(154)	(795)
Accounts payable	(3,828)	(1,311)
Income and other taxes payable	167	3,268
Accrued expenses and other current liabilities	(2,291)	(6,958)
Deferred revenue	(74)	403
Net cash provided by operating activities	40,249	26,678
Investing activities
Purchases of property and equipment	(7,558)	(11,137)
Loans issued	(506)	(1,758)
Repayments of loans issued	1,083	1,164
Acquisitions, net of cash acquired	(341)
Other	20	7
Net cash used in investing activities	(7,302)	(11,724)
Financing activities
Net proceeds on line of credit facility	549	19,267
Cash dividends paid	(5,545)	(5,240)
Excess tax benefit on equity awards	5,091	4,900
Tax payments for equity award issuances	(5,557)	(3,233)
Proceeds from exercise of stock options	2,210	2,989
Acquisition of Company common stock	(24,765)	(32,800)
Distributions to noncontrolling interest holders	(1,705)	(300)
Other	253	223
Net cash used in financing activities	(29,469)	(14,194)
Effect of exchange rate changes on cash and cash equivalents	(76)	(42)
Change in cash and cash equivalents	3,402	718
Cash and cash equivalents at beginning of year	20,122	13,670
Cash and cash equivalents at end of year	$ 23,524	$ 14,388