CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Cash Flows from Operating Activities:
Net income	$ 102,640	$ 101,492
Adjustments to reconcile net income to net cash provided by operations:
Depreciation	66,059	72,946
Amortization	2,166	2,767
Stock based compensation	13,983	13,130
Provision for (recovery of) doubtful accounts	362	(69)
Deferred income taxes	(2,465)	(3,808)
Defined benefit plan expense	10,294	8,452
Equity in results of affiliates in excess of cash distributions received	526	1,744
Changes in balance sheet items, excluding effects from foreign currency adjustments:
Accounts receivable	(50,289)	(71,208)
Inventories	(23,058)	(19,565)
Prepaid and other current assets	(16,381)	(5,868)
Accounts payable and accrued liabilities	38,885	17,898
Income taxes payable	(3,222)	(21,572)
Retirement and deferred compensation plans	(3,832)	(6,559)
Other changes, net	4,509	20,920
Net Cash Provided by Operations	140,177	110,700
Cash Flows from Investing Activities:
Capital expenditures	(60,306)	(87,068)
Proceeds from sale of property and equipment	83	2,287
Insurance proceeds	1,900
Purchase of short-term investments	(66,897)
Notes receivable, net	(701)	(163)
Net Cash Used by Investing Activities	(125,921)	(84,944)
Cash Flows from Financing Activities:
(Repayments of) Proceeds from notes payable	(227,512)	77,019
Proceeds from long-term obligations	225,887
Repayments of long-term obligations	(1,539)	(308)
Dividends paid	(34,929)	(34,693)
Credit facility costs	(1,216)	(299)
Proceeds from stock option exercises	28,810	18,319
Purchase of treasury stock		(52,884)
Excess tax benefit from exercise of stock options	4,575	3,802
Net Cash (Used) Provided Provided by Financing Activities	(5,924)	10,956
Effect of Exchange Rate Changes on Cash	(16,284)	(5,285)
Net (Decrease) Increase in Cash and Equivalents	(7,952)	31,427
Cash and Equivalents at Beginning of Period	399,762	309,861
Cash and Equivalents at End of Period	$ 391,810	$ 341,288