CONSOLIDATED STATEMENT OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Cash flows from operating activities:
Net income	$ 90,697	$ 81,056
Adjustments to reconcile to net cash provided by operating activities:
Depreciation and amortization	19,405	19,039
Deferred income taxes	12,232	(16,313)
Gain on disposal of assets	(1,085)	(806)
Stock-based compensation	4,523	2,990
Changes in assets and liabilities:
Trade receivables	(34,448)	(41,220)
Inventories	18,208	(801)
Accounts payable	(29,339)	(10,653)
Accruals for incentive compensation	(43,178)	(6,756)
Other current payables and accrued expenses	(6,766)	11,787
Other assets	3,531	8,854
Other liabilities	(15,061)	5,459
Net cash provided by operating activities	18,719	52,636
Cash flows from investing activities:
Additions to property, plant and equipment	(29,861)	(28,758)
Purchase of life insurance contracts		(636)
Proceeds from termination of life insurance contracts	793
Maturity of net investment hedges	530	1,960
Proceeds from disposal of assets	204	68
Net cash used in investing activities	(28,334)	(27,366)
Cash flows from financing activities:
Cash dividends paid to shareholders		(25,086)
Net change in revolving credit facility borrowings and overdrafts	(352)	(16,194)
Proceeds from issuance of stock under stock plans	1,970	1,104
Excess tax benefits on stock-based payments	744	1,312
Purchase of treasury stock	(14,242)
Net cash used in financing activities	(11,880)	(38,864)
Effect of exchange rate changes on cash and cash equivalents	(2,881)	1,841
Net change in cash and cash equivalents	(24,376)	(11,753)
Cash and cash equivalents at beginning of year	324,422	88,279
Cash and cash equivalents at end of period	300,046	76,526
Interest paid, net of amounts capitalized	22,167	22,195
Income taxes paid	$ 21,317	$ 7,361