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Summary of Significant Accounting Policies (Redeemable and Non-Redeemable Non-Controlling Interest) (Details) | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
--- | --- | --- | ---
PrinceRidge [Member] |  |  |
Noncontrolling Interest [Line Items] |  |  |
Noncontrolling Interest, Ownership Percentage by Parent | 100.00% | 98.00% | 70.00%
IFMI, LLC [Member] |  |  |
Noncontrolling Interest [Line Items] |  |  |
Noncontrolling Interest, Ownership Percentage by Parent | 73.20% | 67.60% |

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- Definition The parent entity's interest in net assets of the subsidiary, expressed as a percentage. + References No definition available. + Details
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