Certain Nontraditional Long-Duration Contracts (Changes in Deferred Sales Inducements, Reported as "Interest credited to policyholders' account (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
deferredsalesinducements
Deferred Sales Inducements, Beginning Balance	$ 733,803	$ 809,247
Deferred Sales Inducements, Ending Balance	$ 733,803	$ 809,247