Reinsurance (Reinsurance Info) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
EffectsOfReinsurance1[Abstract]
Reinsurance Recoverable, Guarantee Benefits	$ 1,595,250		$ 1,595,250		$ 748,690
Statement [Line Items]
Total realized investment gains (losses), net	(4,195)	(43,415)	(4,366)	(81,511)
Policyholders' benefits	27,973	27,685	56,916	46,303
Operating Expenses Other Than Amortization Of Deferred Policy Acquisition Costs	$ 97,884	$ 100,302	$ 198,885	$ 200,445