Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jul. 02, 2017	Jul. 03, 2016
Operating activities:
Net income	$ 242,672	$ 111,323
Income from discontinued operations and dispositions, net of income taxes	(143,884)	(11,823)
Income from continuing operations	98,788	99,500
Adjustments to reconcile net income from continuing operations to net cash provided by continuing operations:
Restructuring and contract termination charges, net	9,651	4,468
Depreciation and amortization	49,505	50,241
Gain on disposition of businesses and assets, net	301	(5,562)
Stock-based compensation	11,767	9,675
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability	909	5,627
Amortization of deferred debt financing costs and accretion of discount	1,231	751
Amortization of acquired inventory revaluation	4,240	396
Changes in operating assets and liabilities which provided (used) cash, excluding effects from companies purchased and divested:
Accounts receivable, net	5,215	7,364
Inventories	(9,913)	(10,608)
Accounts payable	(20,855)	717
Accrued expenses and other	(55,193)	(55,134)
Net cash provided by operating activities of continuing operations	95,646	107,435
Net cash provided by operating activities of discontinued operations	6,207	20,843
Net cash provided by operating activities	101,853	128,278
Investing activities:
Capital expenditures	(11,473)	(15,870)
Proceeds from surrender of life insurance policies	45	44
Proceeds from Divestiture of Businesses	0	21,000
Changes in restricted cash balances	(17,203)	2,000
Activity related to acquisitions, net of cash and cash equivalents acquired	(123,578)	(10,484)
Net cash used in investing activities of continuing operations	(117,803)	(7,310)
Net cash provided by (used in) investing activities of discontinued operations	276,982	(450)
Net cash provided by (used in) investing activities	159,179	(7,760)
Financing activities:
Payments on borrowings	(145,950)	(195,000)
Proceeds from borrowings	146,952	240,000
Settlement of cash flow hedges	(4,314)	1,278
Net payments on other credit facilities	(577)	(553)
Payments for acquisition-related contingent consideration	(8,940)	(99)
Proceeds from issuance of common stock under stock plans	13,223	8,953
Purchases of common stock	(3,265)	(151,351)
Dividends paid	(15,363)	(15,474)
Net Cash Provided by (Used in) Financing Activities, Continuing Operations	(18,234)	(112,246)
Cash Provided by (Used in) Financing Activities, Discontinued Operations	(533)	(193)
Net cash used in financing activities	(18,767)	(112,439)
Effect of exchange rate changes on cash and cash equivalents	14,778	2,072
Net increase in cash and cash equivalents	257,043	10,151
Cash and cash equivalents at beginning of period	359,265	237,932
Cash and cash equivalents at end of period	$ 616,308	$ 248,083