Reinsurance (Reinsurance Info) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
EffectsOfReinsurance1[Abstract]
Reinsurance Recoverable, Guarantee Benefits	$ 1,345,604		$ 748,690
Statement [Line Items]
Total realized investment gains (losses), net	(171)	(38,096)
Policyholders' benefits	28,943	18,618
Operating Expenses Other Than Amortization Of Deferred Policy Acquisition Costs	$ 101,001	$ 100,143