Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 28, 2015	Jun. 29, 2014
Operating activities:
Net income	$ 89,308	$ 84,714
Less: (gain) loss from discontinued operations and dispositions, net of income taxes	(1)	2,240
Income from continuing operations	89,307	86,954
Adjustments to reconcile net income from continuing operations to net cash provided by continuing operations:
Restructuring and contract termination charges, net	4,956	2,877
Depreciation and amortization	56,593	57,907
Stock-based compensation	8,193	9,319
Amortization of deferred debt financing costs and accretion of discount	677	662
Amortization of acquired inventory revaluation	6,467	0
Changes in operating assets and liabilities which provided (used) cash, excluding effects from companies purchased and divested:
Accounts receivable, net	30,843	23,434
Inventories	(33,327)	(15,737)
Accounts payable	(1,541)	(11,867)
Accrued expenses and other	(61,007)	(30,979)
Net cash provided by operating activities of continuing operations	101,161	122,570
Net cash used in operating activities of discontinued operations	(27)	(464)
Net cash provided by operating activities	101,134	122,106
Investing activities:
Capital expenditures	(10,099)	(14,447)
Proceeds from surrender of life insurance policies	0	425
Changes in restricted cash balances	(59)	0
Activity related to acquisitions and investments, net of cash and cash equivalents acquired	(18,735)	(350)
Net cash used in investing activities of continuing operations	(28,775)	(14,372)
Net cash used in investing activities of discontinued operations	0	(213)
Net cash used in investing activities	(28,775)	(14,585)
Financing activities:
Payments on revolving credit facility	(249,000)	(232,000)
Proceeds from revolving credit facility	184,000	193,000
Payments of debt financing costs	0	(1,845)
Settlement of hedges	23,468	0
Net proceeds from (payments on) other credit facilities	344	(507)
Proceeds from issuance of common stock under stock plans	12,669	19,454
Purchases of common stock	(4,095)	(38,976)
Dividends paid	(15,799)	(15,809)
Net cash used in financing activities	(48,413)	(76,683)
Effect of exchange rate changes on cash and cash equivalents	(6,597)	1,178
Net increase in cash and cash equivalents	17,349	32,016
Cash and cash equivalents at beginning of period	174,821	173,242
Cash and cash equivalents at end of period	$ 192,170	$ 205,258