Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 28, 2014	Jun. 29, 2013
Cash flows from operating activities:
Net earnings	$ 142,888	$ 97,783
Adjustments to reconcile net earnings to cash from operating activities:
Depreciation and amortization	46,057	46,513
Gain from sale of fixed assets	(1,887)	(6,393)
Deferred income taxes	13,362	2,278
Pay-in-kind interest and accretion on notes receivable from affiliates	(7,535)	(6,431)
Loss (income) from affiliates	(14,447)	7,397
Dividends received from affiliates	1,823	11,129
Other investment income, net	(3,360)	(254)
Other, net	626	(109)
Changes in assets and liabilities:
Receivables, net of allowance	69,297	(26,429)
Inventories	(51,365)	(3,186)
Other current assets	6,042	(8,598)
Current liabilities, exclusive of debt	(5,728)	(70,405)
Other, net	7,140	3,119
Net cash from operating activities	202,913	46,414
Cash flows from investing activities:
Purchase of short-term investments	(567,264)	(391,782)
Proceeds from the sale of short-term investments	530,709	338,843
Proceeds from the maturity of short-term investments	3,338	3,644
Capital expenditures	(68,213)	(82,136)
Proceeds from the sale of fixed assets	2,252	9,890
Investments in and advances to affiliates, net	(1,786)	(11,913)
Principal payments received on long-term notes receivable from affiliates		81,272
Purchase of long-term investments	(2,333)	(3,079)
Other, net	(70)	7,382
Net cash from investing activities	(103,367)	(47,879)
Cash flows from financing activities:
Notes payable to banks, net	(23,943)	36,820
Principal payments of long-term debt	(5,903)	(29,767)
Repurchase of common stock	(53,781)	(13,693)
Other, net	(18)	(644)
Net cash from financing activities	(83,645)	(7,284)
Effect of exchange rate change on cash	2,698	109
Net change in cash and cash equivalents	18,599	(8,640)
Cash and cash equivalents at beginning of year	55,055	47,651
Cash and cash equivalents at end of period	$ 73,654	$ 39,011