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Fair Value of Assets and Liabilities Fair Value of Assets and Liabilities (Narrative) (Details)	Mar. 31, 2017	Dec. 31, 2016
Fair Value Disclosures [Abstract]
Percentage Of Fixed Maturity Securities Classified As Level 3	6.60%	6.90%

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- Definition

Percentage of fixed maturity securities classified as Level 3

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No definition available.

+ Details

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- References

No definition available.

+ Details

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