Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Cash Flows From Operating Activities
Net income	$ 64,194	$ 59,053
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	37,942	34,771
Deferred compensation	6,262	(2,711)
Realized and unrealized loss (gain) on long-term investments	(1,717)	848
Stock-based compensation	749	2,707
Deferred income taxes	3,389	5,990
Other non-cash items	4,037	1,266
Changes in assets and liabilities:
Receivables, net	(5,531)	(92,651)
Inventories	(44,142)	(38,007)
Other current assets	(2,186)	(5,527)
Accounts payable and accrued liabilities	24,708	53,036
Pension liabilities	(4,798)	(1,871)
Environmental and legal liabilities	(285)	(508)
Deferred revenues	(662)	(1,197)
Excess tax benefit from stock options and awards	(3,925)	(2,628)
Net Cash Provided By Operating Activities	78,035	12,571
Cash Flows From Investing Activities
Expenditures for property, plant and equipment	(60,855)	(61,022)
Business acquisition		(13,562)
Sale of mutual funds	537	1,615
Other, net	(2,875)	(3,469)
Net Cash Used In Investing Activities	(63,193)	(76,438)
Cash Flows From Financing Activities
Revolving debt and bank overdrafts, net	(2,693)	15,491
Build-to-suit obligation buyout		(12,206)
Other debt repayments	(8,581)	(10,454)
Dividends paid	(9,234)	(8,466)
Company stock repurchased	(1,000)	(1,309)
Stock option exercises	3,430	2,543
Payment to noncontrolling interest (Note 13)	(2,000)
Excess tax benefit from stock options and awards	3,925	2,628
Other, net	(3,708)	(2,000)
Net Cash Used In Financing Activities	(19,861)	(13,773)
Effect of Exchange Rate Changes on Cash	575	(1,144)
Net Decrease in Cash and Cash Equivalents	(4,444)	(78,784)
Cash and Cash Equivalents at Beginning of Period	84,099	111,198
Cash and Cash Equivalents at End of Period	79,655	32,414
Supplemental Cash Flow Information
Cash payments of income taxes, net of refunds	20,638	14,507
Cash payments of interest	$ 6,224	$ 6,033