Fair Value (Details - Change in fair value option table) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Fair Value, Option, Quantitative Disclosures [Line Items]
Change in unrealized gain/loss	$ (471,078)	$ 15,317	$ (503,559)	$ 125,574
[FixedMaturitiesAndShortTermInvestmentsMember]
Fair Value, Option, Quantitative Disclosures [Line Items]
Change in unrealized gain/loss	(395,757)	32,995	(467,427)	80,815
[EquitySecuritiesMember]
Fair Value, Option, Quantitative Disclosures [Line Items]
Change in unrealized gain/loss	(57,715)	(32,963)	(7,649)	17,808
[OtherInvestedAssetsMember]
Fair Value, Option, Quantitative Disclosures [Line Items]
Change in unrealized gain/loss	(2,234)	13,610	(7,068)	18,160
[FundsHeldDirectlyManagedInvestmentMember]
Fair Value, Option, Quantitative Disclosures [Line Items]
Change in unrealized gain/loss	$ (15,372)	$ 1,675	$ (21,415)	$ 8,791