Investment Information (Details - Net Investment Income) (USD $) In Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Investment Income, Net [Abstract]
Gross investment income	$ 89,176	$ 95,976	$ 276,675	$ 289,715
Investment expenses	(6,423)	(5,208)	(18,944)	(15,438)
Net investment income	82,753	90,768	257,731	274,277
Fixed maturities [Member]
Investment Income, Net [Abstract]
Gross investment income	82,686	94,209	252,250	286,051
Equity securities [Member]
Investment Income, Net [Abstract]
Gross investment income	1,796	120	5,187	410
Short-term investments [Member]
Investment Income, Net [Abstract]
Gross investment income	430	473	1,613	958
Other Investment Income [Member]
Investment Income, Net [Abstract]
Gross investment income	$ 4,264	$ 1,174	$ 17,625	$ 2,296

- Definition

This item represents investment income derived from investments in debt and equity securities consisting of interest income earned from investments in debt securities and on cash and cash equivalents, dividend income from investments in equity securities, and income or expense derived from the amortization of investment related discounts or premiums, respectively, net of related investment expenses. This item does not include realized or unrealized gains or losses on the sale or holding of investments in debt and equity securities required to be included in earnings for the period or for other than temporary losses related to investments in debt and equity securities which are included in realized losses in the period recognized, and does not include investment income from real or personal property, such as rental income.

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