Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 29, 2013	Jun. 30, 2012
Cash flows from operating activities:
Net earnings	$ 97,783	$ 131,692
Adjustments to reconcile net earnings to cash from operating activities:
Depreciation and amortization	46,513	44,333
Gain from sale of fixed assets	(6,393)	(2,951)
Deferred income taxes	2,278	(17,689)
Pay-in-kind interest and accretion on note receivable from affiliate	(6,431)	(5,758)
Loss (income) from affiliates	7,397	(19,385)
Dividends received from affiliates	11,129	596
Other investment income, net	(254)	(2,490)
Other	(109)	2,433
Changes in current assets and liabilities, net of business acquired:
Receivables, net of allowance	(26,429)	(15,590)
Inventories	(3,186)	83,692
Other current assets	(8,598)	(1,421)
Current liabilities, exclusive of debt	(70,405)	(64,732)
Other, net	3,119	10,523
Net cash from operating activities	46,414	143,253
Cash flows from investing activities:
Purchase of short-term investments	(391,782)	(434,890)
Proceeds from the sale of short-term investments	338,843	300,911
Proceeds from the maturity of short-term investments	3,644	19,993
Investments in and advances to affiliates, net	(11,913)	(6,791)
Capital expenditures	(82,136)	(68,056)
Proceeds from the sale of fixed assets	9,890	5,839
Principal payments received on long-term notes receivable from affiliate	81,272	564
Purchase of long-term investments	(3,079)	(6,525)
Acquisition of business, net of cash acquired		(2,825)
Other, net	7,382	545
Net cash from investing activities	(47,879)	(191,235)
Cash flows from financing activities:
Notes payable to banks, net	36,820	14,135
Proceeds from the issuance of long-term debt		32,682
Principal payments of long-term debt	(29,767)	(5,928)
Repurchase of common stock	(13,693)	(15,949)
Other, net	(644)	208
Net cash from financing activities	(7,284)	25,148
Effect of exchange rate change on cash	109	(550)
Net change in cash and cash equivalents	(8,640)	(23,384)
Cash and cash equivalents at beginning of year	47,651	71,510
Cash and cash equivalents at end of period	$ 39,011	$ 48,126