Consolidated Condensed Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jul. 01, 2017	Jul. 02, 2016
Operating activities
Net earnings	$ 93,358	$ 61,381
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	80,380	79,117
(Gain) loss on disposal of property and equipment	(51)	76
Accretion of interest on convertible debentures	2,444	2,259
Inventory write-offs for obsolescence	9,729	11,225
Deferred income taxes	6,640	(2,836)
Non-cash loss on disposal of equity affiliate	7,060	0
Gain on early extinguishment of debt	0	(4,597)
Other	2,579	(9,009)
Net change in operating assets and liabilities, net of effects of businesses acquired	(73,873)	(42,203)
Net cash provided by operating activities	128,266	95,413
Investing activities
Capital expenditures	(49,067)	(51,073)
Proceeds from sale of property and equipment	1,288	193
Purchase of short-term investments	(418,114)	(274,524)
Maturity of short-term investments	454,918	351,326
Other investing activities	(6,664)	2,975
Net cash provided by (used in) investing activities	(17,639)	28,897
Financing activities
Principal payments on long-term debt and capital leases	0	(34,044)
Net proceeds (payments) on revolving credit lines	(10,000)	(66,000)
Common stock repurchase	0	(6,123)
Net changes in short-term borrowings	7	(725)
Proceeds from stock options exercised	1,260	0
Distributions to noncontrolling interests	(740)	(707)
Cash withholding taxes paid when shares withheld for vested equity awards	(1,971)	(442)
Other financing activities	(1,255)	0
Net cash provided by (used in) financing activities	(30,976)	(126,481)
Effect of exchange rate changes on cash and cash equivalents	9,600	1,831
Net increase (decrease) in cash and cash equivalents	89,251	(340)
Cash and cash equivalents at beginning of period	471,781	475,507
Cash and cash equivalents at end of period	561,032	475,167
Common Stock [Member]
Financing activities
Dividends and Interest Paid	(16,761)	(16,924)
Class B Convertible Common Stock [Member]
Financing activities
Dividends and Interest Paid	$ (1,516)	$ (1,516)