Reinsurance (Life Insurance In Force) (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Sep. 30, 2015
Reinsurance Disclosures [Abstract]
Direct gross life insurance face amount in force	$ 813,797,417	$ 753,935,518
Assumed gross life insurance face amount in force	42,991,987	43,795,607
Reinsurance ceded	(792,883,439)	(736,832,258)
Net life insurance face amount in force	$ 63,905,965	$ 60,898,867

Amount of life insurance issued and outstanding assumed from other entities. Includes, but not limited to, dividends and adjustments to face value.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 235
-Section S99
-Paragraph 2
-Subparagraph (SX 210.12-17)
-URI http://asc.fasb.org/extlink&oid=34713774&loc=d3e574992-122915

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- Definition

Amount of life insurance issued and outstanding ceded to other entities. Includes, but not limited to, dividends and adjustments to face value.

+ References

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- Definition

Amount before contracts ceded to other entities and contracts assumed by the entity of life insurance issued and outstanding. Includes, but not limited to, dividends and adjustments to face value.

+ References

+ Details

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- Definition

Amount after contracts ceded to other entities and contracts assumed by the entity of life insurance issued and outstanding. Includes, but not limited to, dividends and adjustments to face value.

+ References

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- References

No definition available.

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