Consolidated Condensed Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Jul. 02, 2011
Operating activities
Net earnings	$ 79,905	$ 158,103
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	83,838	90,771
(Gain) loss on disposal of property and equipment	(13,070)	(930)
Accretion of interest on convertible debentures	1,308	861
Inventory write-offs for obsolescence	10,050	10,560
Other	8,110	(2,502)
Net change in operating assets and liabilities, net of effects of businesses acquired	(75,737)	(82,947)
Net cash provided by operating activities	94,404	173,916
Investing activities
Capital expenditures	(47,298)	(45,365)
Proceeds from sale of property and equipment	6,355	1,473
Purchase of businesses, net of cash acquired	(85,493)	0
Purchase of short-term investments	(201,143)	(391,524)
Maturity of short-term investments	207,077	82,990
Other investing activities	(640)	307
Net cash used in investing activities	(121,142)	(352,119)
Financing activities
Proceeds from long-term borrowings	150,000	150,000
Issuance costs	(4,827)	(4,144)
Common stock repurchase	(150,000)	(150,000)
Principal payments on long-term debt and capital leases	(16)	(6)
Net proceeds (payments) on revolving credit lines	5,000	(60,000)
Net changes in short-term borrowings	(2)	(9)
Proceeds from stock options exercised	174	7,938
Excess tax benefit from stock options exercised	0	555
Distributions to noncontrolling interests	0	(500)
Net cash provided by (used in) financing activities	329	(56,166)
Effect of exchange rate changes on cash and cash equivalents	(13,907)	29,623
Net decrease in cash and cash equivalents	(40,316)	(204,746)
Cash and cash equivalents at beginning of period	749,088	897,338
Cash and cash equivalents at end of period	$ 708,772	$ 692,592