Condensed Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Cash Flows From Operating Activities
Net income	$ 55,115	$ 59,899
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	19,089	14,921
Foreign currency transaction loss, net	1,530	1,245
Net loss on asset dispositions	516	716
Stock issued for employee benefit plans	271	476
Stock-based compensation expense	2,321	2,334
Excess tax benefits from stock-based compensation	(1,303)	(1,513)
Deferred income taxes	(9,294)	149
Changes in assets and liabilities:
Receivables	(127)	(19,907)
Inventories	(40,042)	(47,055)
Accounts payable and accrued liabilities	25,092	47,671
Other assets and liabilities, net	(4,601)	(11,091)
Net cash provided by operating activities	48,567	47,845
Cash Flows From Investing Activities
Capital expenditures	(13,104)	(8,030)
Disposals of property, plant and equipment	6,138	492
Other, net	(1)	(21)
Net cash used in investing activities	(6,967)	(7,559)
Cash Flows From Financing Activities
Principal payments on short-term borrowings	(1,883)	(6,595)
Proceeds from short-term borrowings	2,926	3,646
Principal payments on long-term debt	(56,501)	(6,578)
Proceeds from long-term debt	54,010	10
Proceeds from stock option exercises	1,775	3,037
Excess tax benefits from stock-based compensation	1,303	1,513
Purchase of treasury stock	(9,841)	(6,169)
Cash dividends paid	(2,551)	(2,622)
Other	(1,085)	(1,024)
Net cash used in financing activities	(11,847)	(14,782)
Effect of exchange rate changes on cash and cash equivalents	1,850	2,772
Net increase in cash and cash equivalents	31,603	28,276
Cash and cash equivalents, beginning of year	155,259	157,029
Cash and cash equivalents, end of period	$ 186,862	$ 185,305