Components of Equity and Comprehensive Income (Detail) (USD $) In Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Beginning Balance			$ 1,748,154	$ 1,561,347
Exercise of stock options			23,625	23,240
Shares repurchased under provisions of stock repurchase plans			(65,274)	(71,668)
Stock compensation expense			20,708	22,201
Tax benefits from stock plans			4,531	8,119
Comprehensive Income:
Net earnings	95,020	90,409	186,227	151,719
Foreign currency translation adjustments, net of tax	5,372	(14,621)	14,193	(17,753)
Total comprehensive income	100,392	75,788	200,420	133,966
Ending Balance	1,879,150	1,634,808	1,879,150	1,634,808
Comprehensive (loss) income attributable to noncontrolling interest	(109)	(1)	(146)	48
Comprehensive income attributable to shareholders	100,501	75,789	200,566	133,918
Dividends paid			(53,014)	(42,397)
Shareholders' equity
Beginning Balance			1,740,906	1,553,007
Exercise of stock options			23,625	23,240
Shares repurchased under provisions of stock repurchase plans			(65,274)	(71,668)
Stock compensation expense			20,708	22,201
Tax benefits from stock plans			4,531	8,119
Comprehensive Income:
Net earnings			186,232	151,565
Foreign currency translation adjustments, net of tax			14,334	(17,647)
Total comprehensive income			200,566	133,918
Ending Balance	1,872,048	1,626,420	1,872,048	1,626,420
Dividends paid			(53,014)	(42,397)
Noncontrolling Interest
Beginning Balance			7,248	8,340
Comprehensive Income:
Net earnings			(5)	154
Foreign currency translation adjustments, net of tax			(141)	(106)
Total comprehensive income			(146)	48
Ending Balance	$ 7,102	$ 8,388	$ 7,102	$ 8,388

This element represents the amount of recognized equity-based compensation during the period, that is, the amount recognized as expense in the income statement (or as asset if compensation is capitalized). Alternate captions include the words "stock-based compensation".

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Equity impact of common stock cash dividends declared by an entity during the period. This element includes paid and unpaid dividends declared during the period.

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-Paragraph 10
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 04
-Article 3

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 43
-Chapter 1
-Section B
-Paragraph 11A
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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