Consolidated Condensed Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jul. 01, 2017
Operating activities
Net earnings	$ 165,807	$ 93,358
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	81,174	80,380
(Gain) loss on disposal of property and equipment	(2,242)	(51)
Accretion of interest on convertible debentures	2,964	2,444
Inventory write-offs for obsolescence	11,799	9,729
Deferred income taxes	(25,669)	6,640
Non-cash loss on disposal of equity affiliate	0	7,060
Loss on early extinguishment of debt	17,309	0
Other	4,148	2,579
U.S. transition tax (net)	(14,400)	0
Repatriation taxes	(92,093)	0
Net change in operating assets and liabilities, net of effects of businesses acquired	(110,627)	(73,873)
Net cash provided by operating activities	38,170	128,266
Investing activities
Capital expenditures	(76,646)	(49,067)
Proceeds from sale of property and equipment	8,378	1,288
Purchase of businesses, net of cash acquired	(14,880)	0
Purchase of short-term investments	(50,193)	(418,114)
Maturity of short-term investments	447,359	454,918
Other investing activities	(935)	(6,664)
Net cash provided by (used in) investing activities	313,083	(17,639)
Financing activities
Proceeds from long-term borrowings	600,000	0
Issuance costs	(15,621)	0
Repurchase of convertible debentures	(584,991)	0
Net proceeds (payments) on revolving credit lines	(54,000)	(10,000)
Net changes in short-term borrowings	119	7
Proceeds from stock options exercised	0	1,260
Distributions to noncontrolling interests	(525)	(740)
Cash withholding taxes paid when shares withheld for vested equity awards	(2,297)	(1,971)
Other financing activities	0	(1,255)
Net cash provided by (used in) financing activities	(79,308)	(30,976)
Effect of exchange rate changes on cash and cash equivalents	(12,921)	9,600
Net increase (decrease) in cash and cash equivalents	259,024	89,251
Cash and cash equivalents at beginning of period	748,032	471,781
Cash and cash equivalents at end of period	1,007,056	561,032
Common Stock [Member]
Financing activities
Dividends and Interest Paid	(20,148)	(16,761)
Class B Convertible Common Stock [Member]
Financing activities
Dividends and Interest Paid	$ (1,845)	$ (1,516)