Derivatives (Tables)

6 Months Ended

Jun. 30, 2013

Disclosure - Derivatives [Abstract]

Schedule Of Derivative Instruments In Statement Of Financial Position Fair Value Text Block

	Asset		Liability		Net derivatives
	derivatives		derivatives		Net notional
June 30, 2013	at fair value		at fair value		exposure		Fair value
Foreign exchange forward contracts	$	7,486	$	(4,656)	$	1,924,401	$	2,830
Foreign currency option contracts		0		(3,280)		97,113		(3,280)
Futures contracts		55,879		(9)		5,022,813		55,870
Credit default swaps (protection purchased)		0		(404)		34,000		(404)
Credit default swaps (assumed risks)		157		0		10,000		157
Insurance-linked securities (1)		814		(906)		140,744		(92)
Total return swaps		3,328		(903)		68,414		2,425
Interest rate swaps (2)		215		(4,919)		0		(4,704)
TBAs		1		(3,805)		143,466		(3,804)
Total derivatives	$	67,880	$	(18,882)			$	48,998
	Asset		Liability		Net derivatives
	derivatives		derivatives		Net notional
December 31, 2012	at fair value		at fair value		exposure		Fair value
Foreign exchange forward contracts	$	7,889	$	(17,395)	$	2,170,914	$	(9,506)
Foreign currency option contracts		1,410		(186)		133,377		1,224
Futures contracts		1,956		(1,352)		3,981,107		604
Credit default swaps (protection purchased)		6		(807)		55,000		(801)
Credit default swaps (assumed risks)		512		0		17,500		512
Insurance-linked securities (1)		0		(2,173)		135,964		(2,173)
Total return swaps		6,630		(546)		68,730		6,084
Interest rate swaps (2)		0		(7,880)		0		(7,880)
TBAs		115		(163)		155,760		(48)
Total derivatives	$	18,518	$	(30,502)			$	(11,984)

_______________

(1)At June 30, 2013 and December 31, 2012, 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. Accordingly, the notional valueof interest rate swaps is not presented separately in the table.

Schedule of Derivatives Instruments Statements of Financial Performance and Financial Position, Location [Table Text Block]

		For the three		For the three		For the six		For the six
		months ended		months ended		months ended		months ended
		June 30, 2013		June 30, 2012		June 30, 2013		June 30, 2012
Foreign exchange forward contracts		$	(54,004)	$	15,829	$	(36,474)	$	19,710
Foreign currency option contracts			(3,275)		(1,829)		(3,840)		1,498
Total included in net foreign exchange gains and losses		$	(57,279)	$	14,000	$	(40,314)	$	21,208
Futures contracts		$	91,679	$	(41,624)	$	85,376	$	(19,779)
Credit default swaps (protection purchased)			(22)		(14)		(120)		(611)
Credit default swaps (assumed risks)			8		235		115		1,311
Insurance-linked securities			2,469		4,685		(550)		1,226
Total return swaps			(2,988)		(546)		(3,659)		(469)
Interest rate swaps			2,399		(1,165)		3,176		(202)
TBAs			(8,363)		3,808		(9,697)		4,878
Total included in net realized and unrealized
	investment gains and losses	$	85,182	$	(34,621)	$	74,641	$	(13,646)
Total derivatives		$	27,903	$	(20,621)	$	34,327	$	7,562

Offsetting Disclosures

			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
June 30, 2013	recognized (1)		balance sheet		balance sheet		instruments		received/pledged		Net amount
Total derivative assets	$	67,880	$	0	$	67,880	$	(3,459)	$	0	$	64,421
Total derivative liabilities	$	(18,882)	$	0	$	(18,882)	$	3,459	$	6,286	$	(9,137)
December 31, 2012
Total derivative assets	$	18,518	$	0	$	18,518	$	(12,051)	$	0	$	6,467
Total derivative liabilities	$	(30,502)	$	0	$	(30,502)	$	12,051	$	0	$	(18,451)

_______________

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