Derivatives (Details - Balance Sheet) $ in Thousands, € in Millions		Mar. 31, 2016 USD ($)	Mar. 31, 2016 EUR (€)	Dec. 31, 2015 USD ($)
Derivative [Line Items]
Derivative Fair Value Of Derivative Asset	[1]	$ 36,747		$ 33,159
Derivative Fair Value Of Derivative Liability	[1]	(39,808)		(47,916)
Fair value net		(3,061)		(14,757)
Derivatives designated as hedges
Derivative [Line Items]
Derivative Fair Value Of Derivative Asset		1,058		0
Derivative Fair Value Of Derivative Liability		0		(9,305)
Fair value net		1,058		(9,305)
Derivatives not designated as hedges
Derivative [Line Items]
Derivative Fair Value Of Derivative Asset		35,689		33,159
Derivative Fair Value Of Derivative Liability		(39,808)		(38,611)
Fair value net		(4,119)		(5,452)
Foreign exchange forward contracts [Member] | Derivatives designated as hedges
Derivative [Line Items]
Derivative Fair Value Of Derivative Asset		1,058		0
Derivative Fair Value Of Derivative Liability		0		(9,305)
Net notional exposure		394,807		392,523
Fair value net		1,058		(9,305)
Foreign exchange forward contracts [Member] | Derivatives not designated as hedges
Derivative [Line Items]
Derivative Fair Value Of Derivative Asset		14,061		15,311
Derivative Fair Value Of Derivative Liability		(4,258)		(5,804)
Net notional exposure		1,632,863		1,708,285
Fair value net		9,803		9,507
Foreign currency option contracts [Member] | Derivatives not designated as hedges
Derivative [Line Items]
Derivative Fair Value Of Derivative Asset		1,977		0
Derivative Fair Value Of Derivative Liability		0		0
Net notional exposure		90,413		82,148
Fair value net		1,977		0
Futures contracts [Member] | Derivatives not designated as hedges
Derivative [Line Items]
Derivative Fair Value Of Derivative Asset		5,588		5,675
Derivative Fair Value Of Derivative Liability		(1,441)		(140)
Net notional exposure		3,186,204		3,610,658
Fair value net		4,147		5,535
Insurance-linked securities [Member] | Derivatives not designated as hedges
Derivative [Line Items]
Derivative Fair Value Of Derivative Asset	[2]	9,491		9,428
Derivative Fair Value Of Derivative Liability	[2]	(5,830)		(3,944)
Net notional exposure	[2]	140,558		140,320
Fair value net	[2]	3,661		5,484
Total return swaps [Member] | Derivatives not designated as hedges
Derivative [Line Items]
Derivative Fair Value Of Derivative Asset		2,953		2,745
Derivative Fair Value Of Derivative Liability		(2,999)		(2,878)
Net notional exposure		42,418		42,438
Fair value net		(46)		(133)
Interest rate swaps [Member] | Derivatives not designated as hedges
Derivative [Line Items]
Derivative Fair Value Of Derivative Asset	[3]	0		0
Derivative Fair Value Of Derivative Liability	[3]	(25,280)		(24,383)
Net notional exposure	[3]	196,268		196,804
Fair value net	[3]	(25,280)		(24,383)
TBAs [Member] | Derivatives not designated as hedges
Derivative [Line Items]
Derivative Fair Value Of Derivative Asset		1,619		0
Derivative Fair Value Of Derivative Liability		0		(1,462)
Net notional exposure		439,105		447,315
Fair value net		$ 1,619		$ (1,462)
Euro | Foreign exchange forward contracts [Member] | Derivatives designated as hedges
Derivative [Line Items]
Net notional exposure | €			€ 350

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

[2] At March 31, 2016 and December 31, 2015, 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.