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Investments in Securities and Fair Value Schedule of Assumptions Used to Determine Fair Value (Details) | 12 Months Ended
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Dec. 31, 2013 | Dec. 31, 2012
Investments, Debt and Equity Securities [Abstract] |  |
Cumulative probability of earning maximum rate until maturity | 0.00% | 0.00%
Cumulative probability of principle returned prior to maturity | 95.60% | 96.10%
Cumulative probability of default at some future point | 4.40% | 3.90%

X
- Definition Percentage of cumulative probability of default at some future point + References No definition available. + Details
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- Definition Percentage of cumulative probability of earning maximum rate until maturity + References No definition available. + Details
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- Definition Percentage of cumulative probability of principle returned prior to maturity + References No definition available. + Details
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- Details
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