Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 28, 2014	Dec. 29, 2013	Dec. 30, 2012
Operating activities:
Net income	$ 157,778	$ 167,212	$ 69,940
Less: Loss from discontinued operations and dispositions	3,388	7,055	1,349
Income from continuing operations	161,166	174,267	71,289
Adjustments to reconcile net income from continuing operations to net cash provided by continuing operations:
Restructuring and contract termination charges, net	13,390	33,892	25,051
Depreciation and amortization	116,736	126,879	125,126
Stock-based compensation	14,464	14,053	20,625
Pension and other postretirement expense	77,669	(18,176)	35,336
Deferred taxes	(33,351)	(29,907)	(65,551)
Contingencies and prior year tax matters	(7,605)	(34,455)	1,382
Amortization of deferred debt issuance costs, interest rate hedge and accretion of discounts	1,434	6,502	3,517
Losses (gains) on step acquisitions and dispositions, net	108	(1,566)	0
Amortization of acquired inventory revaluation	2,425	203	5,214
Asset impairment	0	158	74,153
Changes in assets and liabilities which (used) provided cash, excluding effects from companies purchased and divested:
Accounts receivable, net	(16,989)	(14,071)	(44,878)
Inventories, net	(24,642)	(14,171)	(7,860)
Accounts payable	8,103	(1,083)	(8,083)
Excess tax benefit from exercise of common stock options	0	0	1,767
Accrued expenses and other	(30,640)	(85,277)	(83,102)
Net cash provided by operating activities of continuing operations	282,268	157,248	153,986
Net cash (used in) provided by operating activities of discontinued operations	(671)	1,343	(1,816)
Net cash provided by operating activities	281,597	158,591	152,170
Investing activities:
Capital expenditures	(29,072)	(38,981)	(42,401)
Proceeds from dispositions of property, plant and equipment, net	2,531	52,202	0
Changes in restricted cash balances	0	0	487
Proceeds from surrender of life insurance policies	490	783	0
Payments for acquisitions and investments, net of cash and cash equivalents acquired	(271,477)	(15,699)	(40,858)
Net cash used in investing activities of continuing operations	(297,528)	(1,695)	(82,772)
Net cash provided by (used in) investing activities of discontinued operations	1,631	484	2,463
Net cash (used in) provided by investing activities	(295,897)	(1,211)	(80,309)
Financing activities:
Payments on revolving credit facility	(356,000)	(538,000)	(435,850)
Proceeds from revolving credit facility	475,000	677,000	395,000
Early Repayment of Senior Debt	0	(150,000)	0
Payments of Debt Extinguishment Costs	0	(11,119)	0
Payments of debt issuance costs	(1,845)	0	(416)
Proceeds from (payments on) other credit facilities	(12,675)	5,281	5,274
Settlement of cash flow hedges	0	1,363	4,050
Payments for acquisition-related contingent consideration	(855)	0	(12,459)
Excess tax benefit from exercise of common stock options	0	0	1,767
Proceeds from issuance of common stock under stock plans	24,455	20,313	32,478
Purchases of common stock	(65,529)	(127,398)	(2,104)
Dividends paid	(31,620)	(31,600)	(31,903)
Net cash provided by (used in) financing activities	30,931	(154,160)	(44,163)
Effect of exchange rate changes on cash and cash equivalents	(15,052)	(1,422)	1,404
Net (decrease) increase in cash and cash equivalents	1,579	1,798	29,102
Cash and cash equivalents at beginning of year	173,242	171,444	142,342
Cash and cash equivalents at end of year	174,821	173,242	171,444
Supplemental disclosures of cash flow information
Interest	30,320	39,904	40,447
Income taxes	$ 40,638	$ 36,675	$ 53,281