CONDENSED CONSOLIDATED STATEMENT OF STOCKHOLDERS EQUITY AND COMPREHENSIVE INCOME (UNAUDITED) (USD $) In Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock [Member]	Common Stock Held In Trust [Member]	Deferred Compensation, Share-based Payments [Member]	Accumulated Other Comprehensive Income [Member]	Retained Earnings [Member]
Beginning Balance at Dec. 31, 2010	$ 2,526,982	$ 125,839	$ 1,920,622	$ (30,532)	$ (10,857)	$ 10,857	$ (40,157)	$ 551,210
Comprehensive income:
Net earnings	120,435							120,435
Net change in other comprehensive loss	(11,350)						(11,350)
Comprehensive income	109,085
Common stock dividends declared	(37,409)							(37,409)
Share-based compensation	4,899		4,899
Restricted stock issuances	0	7	(7)	0
Exercise of stock options	1,694	129	1,842	(277)
Contributions to Trust	0	0	0	0	(355)	355	0	0
Disbursements from Trust	0				669	(669)
Ending balance at Jun. 30, 2011	$ 2,605,251	$ 125,975	$ 1,927,356	$ (30,809)	$ (10,543)	$ 10,543	$ (51,507)	$ 634,236

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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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The change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to the reporting entity. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, but excludes any and all transactions which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent.

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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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Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

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Value of stock related to Restricted Stock Awards issued during the period, net of the stock value of such awards forfeited.

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

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