Derivatives (Tables)

3 Months Ended

Mar. 31, 2014

Disclosure - Derivatives [Abstract]

Fair Values and Related Notional Values of Derivatives [Table Text Block]

	Asset		Liability		Net derivatives
	derivatives		derivatives		Net notional
March 31, 2014	at fair value		at fair value		exposure		Fair value
Foreign exchange forward contracts	$	4,404	$	(5,888)	$	2,270,300	$	(1,484)
Foreign currency option contracts		398		0		103,887		398
Futures contracts		18,814		(5)		3,271,970		18,809
Insurance-linked securities (1)		0		(740)		170,252		(740)
Total return swaps		181		(483)		42,736		(302)
Interest rate swaps (2)		0		(5,797)		202,481		(5,797)
TBAs		0		(1,388)		143,110		(1,388)
Total derivatives	$	23,797	$	(14,301)			$	9,496
	Asset		Liability		Net derivatives
	derivatives		derivatives		Net notional
December 31, 2013	at fair value		at fair value		exposure		Fair value
Foreign exchange forward contracts	$	1,249	$	(8,648)	$	1,957,409	$	(7,399)
Foreign currency option contracts		0		(535)		87,620		(535)
Futures contracts		41,031		0		3,266,004		41,031
Credit default swaps (protection purchased)		0		(71)		14,000		(71)
Insurance-linked securities (1)		0		(268)		168,724		(268)
Total return swaps		79		(599)		31,740		(520)
Interest rate swaps (2)		2,147		(2,558)		202,859		(411)
TBAs		2		(1,331)		183,835		(1,329)
Total derivatives	$	44,508	$	(14,010)			$	30,498

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(1)At March 31, 2014 and December 31, 2013, 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.

(2)The Company enters into interest rate swaps to mitigate notional exposures oncertain total return swaps and certain fixed maturities. Only the notional valueof interest rate swaps on fixed maturities is presented separately in the table.

Gains and Losses on Derivatives not Designated as Hedges [Table Text Block]

	For the three		For the three
	months ended		months ended
	March 31, 2014		March 31, 2013
Foreign exchange forward contracts	$	8,255	$	17,530
Foreign currency option contracts		395		(565)
Total included in net foreign exchange gains and losses	$	8,650	$	16,965
Futures contracts	$	(16,073)	$	(6,303)
Credit default swaps (protection purchased)		(3)		(98)
Credit default swaps (assumed risks)		0		107
Insurance-linked securities		243		(3,019)
Total return swaps		218		(671)
Interest rate swaps		(5,385)		777
TBAs		3,747		(1,334)
Total included in net realized and unrealized investment gains and losses	$	(17,253)	$	(10,541)
Total derivatives	$	(8,603)	$	6,424

Offsetting Disclosures [Table Text Block]

			Gross		Net amounts of		Gross amounts not offset
	Gross		amounts		assets/ liabilities		in the balance sheet
	amounts		offset in the		presented in the		Financial		Cash collateral
March 31, 2014	recognized (1)		balance sheet		balance sheet		instruments		received/pledged		Net amount
Total derivative assets	$	23,797	$	0	$	23,797	$	(5)	$	0	$	23,792
Total derivative liabilities	$	(14,301)	$	0	$	(14,301)	$	5	$	1,806	$	(12,490)
December 31, 2013
Total derivative assets	$	44,508	$	0	$	44,508	$	(2)	$	0	$	44,506
Total derivative liabilities	$	(14,010)	$	0	$	(14,010)	$	2	$	4,341	$	(9,667)

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