Derivatives (Details - Balance Sheet) In Thousands, unless otherwise specified	Mar. 31, 2015 USD ($)		Dec. 31, 2014 USD ($)		Mar. 31, 2015 Derivatives designated as hedges USD ($)		Mar. 31, 2015 Derivatives not designated as hedges USD ($)		Mar. 31, 2015 Foreign exchange forward contracts [Member] Derivatives designated as hedges USD ($)	Mar. 31, 2015 Foreign exchange forward contracts [Member] Derivatives not designated as hedges USD ($)	Dec. 31, 2014 Foreign exchange forward contracts [Member] Derivatives not designated as hedges USD ($)	Mar. 31, 2015 Foreign currency option contracts [Member] Derivatives not designated as hedges USD ($)	Dec. 31, 2014 Foreign currency option contracts [Member] Derivatives not designated as hedges USD ($)	Mar. 31, 2015 Futures contracts [Member] Derivatives not designated as hedges USD ($)	Dec. 31, 2014 Futures contracts [Member] Derivatives not designated as hedges USD ($)	Mar. 31, 2015 Insurance-linked securities [Member] Derivatives not designated as hedges USD ($)		Dec. 31, 2014 Insurance-linked securities [Member] Derivatives not designated as hedges USD ($)		Mar. 31, 2015 Total return swaps [Member] Derivatives not designated as hedges USD ($)	Dec. 31, 2014 Total return swaps [Member] Derivatives not designated as hedges USD ($)	Mar. 31, 2015 Interest rate swaps [Member] Derivatives not designated as hedges USD ($)		Dec. 31, 2014 Interest rate swaps [Member] Derivatives not designated as hedges USD ($)		Mar. 31, 2015 TBAs [Member] Derivatives not designated as hedges USD ($)	Dec. 31, 2014 TBAs [Member] Derivatives not designated as hedges USD ($)	Mar. 31, 2014 Original currency Foreign exchange forward contracts [Member] Derivatives designated as hedges EUR (€)
Derivative [Line Items]
Derivative Fair Value Of Derivative Asset	$ 19,755	[1]	$ 21,521	[1]	$ 2,559	[1]	$ 17,196	[1]	$ 2,559	$ 12,855	$ 20,033	$ 1,848	$ 0	$ 0	$ 846	$ 23	[2]	$ 3	[2]	$ 1,061	$ 485	$ 0	[3]	$ 0	[3]	$ 1,409	$ 154
Derivative Fair Value Of Derivative Liability	(52,540)	[1]	(27,977)	[1]	0	[1]	(52,540)	[1]	0	(7,623)	(7,446)	0	(1,196)	(21,382)	(467)	(343)	[2]	(339)	[2]	(2,118)	(2,007)	(21,074)	[3]	(16,282)	[3]	0	(240)
Net notional exposure									271,250	2,079,250	2,080,276	70,062	43,380	2,741,323	2,348,735	144,780	[2]	145,481	[2]	42,504	42,524	200,643	[3]	201,160	[3]	280,625	235,105	250,000
Fair value net	$ (32,785)		$ (6,456)		$ 2,559		$ (35,344)		$ 2,559	$ 5,232	$ 12,587	$ 1,848	$ (1,196)	$ (21,382)	$ 379	$ (320)	[2]	$ (336)	[2]	$ (1,057)	$ (1,522)	$ (21,074)	[3]	$ (16,282)	[3]	$ 1,409	$ (86)

[1] Amounts include all derivative instruments, irrespective of whether there is a legally enforceable master netting arrangement in place.

[2] At March 31, 2015 and December 31, 2014, insurance-linked securities include a longevity swap for which the notional amount is not reflective of the overall potential exposure of the swap. As such, the Company has included the probable maximum loss under the swap within the net notional exposure as an approximation of the notional amount.

[3] The Company enters into interest rate swaps to mitigate notional exposures on certain total return swaps and certain fixed maturities. Only the notional value of interest rate swaps on fixed maturities is presented separately in the table.