Consolidated Condensed Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jul. 02, 2016	Jul. 04, 2015
Operating activities
Net earnings	$ 61,381	$ 57,443
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	79,117	90,185
(Gain) loss on disposal of property and equipment	76	(115)
Accretion of interest on convertible debentures	2,259	2,090
Inventory write-offs for obsolescence	11,225	9,329
Deferred income taxes	(2,836)	(9,473)
Gain on early extinguishment of debt	(4,597)	0
Other	(9,451)	(1,451)
Net change in operating assets and liabilities, net of effects of businesses acquired	(42,203)	(55,646)
Net cash provided by operating activities	94,971	92,362
Investing activities
Capital expenditures	(51,073)	(49,550)
Proceeds from sale of property and equipment	193	1,675
Purchase of short-term investments	(274,524)	(185,583)
Maturity of short-term investments	351,326	91,450
Sale of short-term investments	0	503
Sale of other investments	0	400
Other investing activities	2,975	1,274
Net cash provided by (used in) investing activities	28,897	(139,831)
Financing activities
Principal payments on long-term debt and capital leases	(34,044)	0
Net proceeds (payments) on revolving credit lines	(66,000)	(30,000)
Common stock repurchase	(6,123)	0
Net changes in short-term borrowings	(725)	(1)
Excess tax benefit from RSUs vested	0	21
Distributions to noncontrolling interests	(707)	(725)
Net cash provided by (used in) financing activities	(126,039)	(48,413)
Effect of exchange rate changes on cash and cash equivalents	1,831	(13,270)
Net increase (decrease) in cash and cash equivalents	(340)	(109,152)
Cash and cash equivalents at beginning of period	475,507	592,172
Cash and cash equivalents at end of period	475,167	483,020
Common Stock [Member]
Financing activities
Dividends and Interest Paid	(16,924)	(16,252)
Class B Convertible Common Stock [Member]
Financing activities
Dividends and Interest Paid	$ (1,516)	$ (1,456)