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Fair Value of Financial Instruments (Details Textual) | Dec. 31, 2013 | Dec. 31, 2012
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Fair Value of Financial Instruments (Textual) [Abstract] |  |
Percentage of Investment portfolio fair value pricing services or index price | 87.00% | 88.00%
Percentage of Invested assets in total investment portfolio level 3 | 2.00% |

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- Definition Percentage of invested assets in the total investment portfolio in Level 3. + References No definition available. + Details
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