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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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Net of tax effect change in accumulated gains and losses from derivative instruments designated and qualifying as the effective portion of cash flow hedges after taxes. A cash flow hedge is a hedge of the exposure to variability in the cash flows of a recognized asset or liability or a forecasted transaction that is attributable to a particular risk. The change includes an entity's share of an equity investee's increase or decrease in deferred hedging gains or losses. While for technical reasons this element has no balance attribute, the default assumption is a credit balance consistent with its label.

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Adjustment that results from the process of translating subsidiary financial statements and foreign equity investments into the reporting currency of the reporting entity, net of tax.

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Reclassification adjustment for unrealized gains or losses realized upon the sale of securities, after tax.

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The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

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Number of shares of stock issued as of the balance sheet date, including shares that had been issued and were previously outstanding but which are now held in the treasury.

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Total of Stockholders' Equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity including portions attributable to both the parent and noncontrolling interests (previously referred to as minority interest), if any. The entity including portions attributable to the parent and noncontrolling interests is sometimes referred to as the economic entity. This excludes temporary equity and is sometimes called permanent equity.

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Consolidated Statement of Shareholders' Equity (USD $) In Thousands, except Share data	Total	Common Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Income	Deferred Equity Compensation
Balance at Dec. 31, 2010	$ 3,798,764	$ 1,837	$ 2,585,423	$ 1,098,859	$ 110,645	$ 2,000
Balance (in shares) at Dec. 31, 2010		183,744,655
Increase (Decrease) in Shareholders' Equity
Net income	67,740			67,740
Dividends ($0.09 per share)	(16,577)			(16,577)
Dividends on restricted stock units			124	(124)
Share-based compensation and other	5,112	5	5,107
Share-based compensation and other (in shares)		448,081
Change in cumulative translation adjustment	1,589				1,589
Change in cash flow hedge	(209)				(209)
Change in unrealized gains (losses) on:
Investments with no other-than-temporary impairment	81,912				81,912
Investments with other-than-temporary impairment	8,456				8,456
Less: reclassification adjustment for gains (losses) included in net income (loss)	(3,198)				(3,198)
Balance at Jun. 30, 2011	$ 3,949,985	$ 1,842	$ 2,590,654	$ 1,149,898	$ 205,591	$ 2,000
Balance (in shares) at Jun. 30, 2011		184,192,736