Investments (Schedule Of Contractual Maturity Dates Of Available For Sale Fixed Maturity Investments) (Details) (USD $) In Thousands	Sep. 30, 2011	Dec. 31, 2010
Investments [Abstract]
Available for sale fixed maturity, Due within one year, Amortized Cost	$ 26,354
Available for sale fixed maturity, Due after one year through five years, Amortized Cost	198,860
Available for sale fixed maturity, Due after five years through ten years, Amortized Cost	35,815
Available for sale fixed maturity, Due after ten years, Amortized Cost	3,021
Available for sale fixed maturity, Amortized Cost	264,050	828,544
Available for sale fixed maturity, Due within one year, Fair Value	26,819
Available for sale fixed maturity, Due after one year through five years, Fair Value	213,579
Available for sale fixed maturity, Due after five years through ten years, Fair Value	40,787
Available for sale fixed maturity, Due after ten years, Fair Value	3,781
Available for sale fixed maturity, Fair Value	$ 284,966	$ 891,849

This item represents debt securities, at cost, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments, as defined), and fair value hedge accounting adjustments, if any, which are expected to mature after five years and through ten years from the balance sheet date and which are categorized neither as held-to-maturity nor trading securities.

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This item represents the total of all debt securities grouped by maturity dates, at cost, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments, as defined), and fair value hedge accounting adjustments, if any, which are classified neither as held-to-maturity nor trading securities.

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For an unclassified balance sheet, total of debt securities categorized neither as held-to-maturity nor trading.

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