CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Cash Flows from Operating Activities:
Net income	$ 135,090	$ 127,566
Adjustments to reconcile net income to net cash provided by operations:
Depreciation	108,259	98,501
Amortization	3,748	1,898
Stock based compensation	11,538	10,773
Provision for doubtful accounts	(516)	(327)
Deferred income taxes	(5,612)	(3,644)
Defined benefit plan expense	14,531	10,855
Equity in results of affiliates in excess of cash distributions received	609	518
Changes in balance sheet items, excluding effects from foreign currency adjustments:
Accounts receivable	(42,531)	(14,365)
Inventories	(27,168)	(11,819)
Prepaid and other current assets	(15,416)	6,342
Accounts payable and accrued liabilities	8,544	(2,963)
Income taxes payable	10,312	4,716
Retirement and deferred compensation plans	(18,717)	(19,260)
Other changes, net	11,850	(11,273)
Net Cash Provided by Operations	194,521	197,518
Cash Flows from Investing Activities:
Capital expenditures	(110,350)	(133,016)
Disposition of property and equipment	2,207	2,430
Acquisition of business, net of cash acquired		(187,840)
Investment in unconsolidated affiliate	(13)	(279)
Notes receivable, net	(159)	7
Net Cash Used by Investing Activities	(108,315)	(318,698)
Cash Flows from Financing Activities:
Proceeds/(Repayments) from notes payable	31,908	(166,911)
Proceeds from long-term obligations		125,029
Repayments of long-term obligations	(25,491)
Dividends paid	(49,674)	(43,830)
Credit facility costs	(498)	(1,470)
Proceeds from stock option exercises	38,368	35,239
Purchase of treasury stock	(80,222)	(40,896)
Excess tax benefit from exercise of stock options	5,058	6,006
Net Cash Used by Financing Activities	(80,551)	(86,833)
Effect of Exchange Rate Changes on Cash	12,441	4,684
Net Increase/(Decrease) in Cash and Equivalents	18,096	(203,329)
Cash and Equivalents at Beginning of Period	229,755	377,616
Cash and Equivalents at End of Period	$ 247,851	$ 174,287