CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
Cash Flows from Operating Activities:
Net income	$ 95,755	$ 85,854
Adjustments to reconcile net income to net cash provided by operations:
Depreciation	66,780	64,640
Amortization	1,739	1,834
Stock option based compensation	9,414	8,198
Provision for bad debts	634	45
Deferred income taxes	(3,528)	(5,099)
Retirement and deferred compensation plan expense	5,721	5,415
Changes in balance sheet items, excluding effects from foreign currency adjustments:
Accounts receivable	(57,820)	(74,621)
Inventories	(34,888)	(29,196)
Prepaid and other current assets	(22,987)	(5,343)
Accounts payable and accrued liabilities	16,551	84,567
Income taxes payable	2,447	15,784
Retirement and deferred compensation plans	(15,823)	(10,669)
Other changes, net	1,512	(8,587)
Net Cash Provided by Operations	65,507	132,822
Cash Flows from Investing Activities:
Capital expenditures	(78,943)	(59,824)
Disposition of property and equipment	2,529	521
Intangible assets acquired		(76)
Acquisition of business net of cash acquired		(3,014)
Notes receivable, net	54	(24)
Net Cash Used by Investing Activities	(76,360)	(62,417)
Cash Flows from Financing Activities:
Proceeds/(Repayments) from notes payable	47,423	(19,880)
Repayments of long-term obligations	(48,360)	(24,158)
Dividends paid	(24,100)	(20,288)
Proceeds from stock option exercises	13,858	17,366
Purchase of treasury stock	(40,826)	(32,962)
Excess tax benefit from exercise of stock options	4,346	2,272
Net Cash Used by Financing Activities	(47,659)	(77,650)
Effect of Exchange Rate Changes on Cash	23,409	(78,451)
Net Decrease in Cash and Equivalents	(35,103)	(85,696)
Cash and Equivalents at Beginning of Period	376,427	332,964
Cash and Equivalents at End of Period	$ 341,324	$ 247,268