Realized and Unrealized Investment Gains (Losses) (Realized and Unrealized Investment Gains (Losses) (Details) (USD $) In Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Realized And Unrealized Investment Gains (Losses)
Gains	$ 10,212	$ 5,669	$ 25,049	$ 27,519
Losses	(2,207)	(2,956)	(4,716)	(6,214)
Equity securities available for sale	12,318	2,974	50,539	3,765
Other	0	0	0	224
Sales of investment funds	915	640	2,940	1,061
Other-than-temporary impairments	0	(1,123)	(400)	(3,705)
Less investment impairments recognized in other comprehensive income	0	0	0	0
Net investment gains	21,238	5,204	73,412	22,650
Income tax expense	(7,454)	(1,840)	(26,502)	(7,994)
Total net investment gains	$ 13,784	$ 3,364	$ 46,910	$ 14,656

This item represents the amount of gain (loss) arising from the disposal of an equity method investment.

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This item represents the net total realized and unrealized gain (loss) included in earnings for the period as a result of selling or holding marketable securities categorized as trading, available-for-sale, or held-to-maturity, including the unrealized holding gain (loss) of held-to-maturity securities transferred to the trading security category and the cumulative unrealized gain (loss) which was included in other comprehensive income (a separate component of shareholders' equity) for available-for-sale securities transferred to trading securities during the period. Additionally, this item would include any gains (losses) realized during the period from the sale of investments accounted for under the cost method of accounting and losses recognized for other than temporary impairments (OTTI) of the subject investments.

+ References

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The net gain (loss) resulting from the sale or disposal of assets not required to be reported separately in the statement of income.

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This element represents the amount of loss recognized for other than temporary impairments (OTTI) of investments in debt and equity securities.

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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Available For Sale Equity Securities Net Realized Gain Loss Excluding Other Than Temporary Impairments

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Income Tax Expense On Realized Investment Gains Losses

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Marketable Securities Fixed Maturities Gross Realized Gains

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Marketable Securities Fixed Maturities Gross Realized Losses Excluding Other Than Temporary Impairments

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Portion of Impairment Loss Recognized in Transferred from Other Comprehensive Income

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Realized And Unrealized Investment Gains (Losses)

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Realized Investment Gains Losses Net of Tax.

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