Reinsurance (Life Insurance In Force) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
Reinsurance [Abstract]
Gross life insurance face amount in force	$ 650,902,169	$ 599,133,554
Assumed life insurance face amount in force	42,798,981
Reinsurance ceded	(638,575,156)	(543,199,086)
Net life insurance face amount in force	$ 55,125,994	$ 55,934,468