Components of Equity (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	$ 1,871,608	$ 2,086,331
Exercise of stock options	35,048	7,892
Shares repurchased under provisions of stock repurchase plans	(77,368)	(226,725)
Stock compensation expense	9,907	10,294
Tax benefits from stock plans, net	1,466	489
Net earnings	107,332us-gaap_ProfitLoss	84,195us-gaap_ProfitLoss
Other comprehensive (loss) income	(19,605)	(2,377)
Distributions to noncontrolling interest	(857)	(85)
Ending Balance	1,927,531	1,960,014
Shareholders' Equity
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	1,868,408	2,084,783
Exercise of stock options	35,048	7,892
Shares repurchased under provisions of stock repurchase plans	(77,368)	(226,725)
Stock compensation expense	9,907	10,294
Tax benefits from stock plans, net	1,466	489
Net earnings	106,704	83,824
Other comprehensive (loss) income	(19,274)	(2,426)
Ending Balance	1,924,891	1,958,131
Noncontrolling Interest
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	3,200	1,548
Net earnings	628	371
Other comprehensive (loss) income	(331)	49
Distributions to noncontrolling interest	(857)	(85)
Ending Balance	$ 2,640	$ 1,883

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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Amount of increase (decrease) in additional paid in capital (APIC) resulting from a tax benefit (deficiency) associated with an share-based compensation plan other than an employee stock ownership plan (ESOP).

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Decrease in noncontrolling interest balance from payment of dividends or other distributions by the non-wholly owned subsidiary or partially owned entity, included in the consolidation of the parent entity, to the noncontrolling interest holders.

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Amount after tax and reclassification adjustments of other comprehensive income (loss).

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Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity.

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Value of stock issued as a result of the exercise of stock options.

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