Components of Equity and Comprehensive Income (Detail) (USD $) In Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Beginning Balance			$ 1,748,154	$ 1,561,347
Exercise of stock options			30,367	40,408
Issuance of shares under stock purchase plan			24,224	20,550
Shares repurchased under provisions of stock repurchase plans			(108,572)	(139,450)
Stock compensation expense			33,446	33,047
Tax benefits from stock plans			5,068	11,589
Comprehensive Income:
Net earnings	106,876	96,038	293,103	247,757
Foreign currency translation adjustments, net of tax	(24,707)	21,983	(10,514)	4,230
Reclassification adjustments for foreign currency realized losses, net of tax	618	0	618	0
Total comprehensive income	82,787	118,021	283,207	251,987
Ending Balance	1,962,058	1,736,118	1,962,058	1,736,118
Comprehensive (loss) income attributable to noncontrolling interest	59	71	(87)	119
Comprehensive income attributable to shareholders	82,728	117,950	283,294	251,868
Dividends paid			(53,014)	(42,397)
Distributions to noncontrolling interest			(822)	(963)
Shareholders' equity
Beginning Balance			1,740,906	1,553,007
Exercise of stock options			30,367	40,408
Issuance of shares under stock purchase plan			24,224	20,550
Shares repurchased under provisions of stock repurchase plans			(108,572)	(139,450)
Stock compensation expense			33,446	33,047
Tax benefits from stock plans			5,068	11,589
Comprehensive Income:
Net earnings			292,836	247,670
Foreign currency translation adjustments, net of tax			(10,160)	4,198
Reclassification adjustments for foreign currency realized losses, net of tax			618
Total comprehensive income			283,294	251,868
Ending Balance	1,955,719	1,728,622	1,955,719	1,728,622
Dividends paid			(53,014)	(42,397)
Noncontrolling Interest
Beginning Balance			7,248	8,340
Comprehensive Income:
Net earnings			267	87
Foreign currency translation adjustments, net of tax			(354)	32
Total comprehensive income			(87)	119
Ending Balance	6,339	7,496	6,339	7,496
Distributions to noncontrolling interest			$ (822)	$ (963)

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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