Summary of Significant Accounting Policies (Redeemable and Non-Redeemable Non-Controlling Interest) (Details)	Dec. 31, 2015	Dec. 31, 2014
PrinceRidge [Member]
Noncontrolling Interest [Line Items]
Noncontrolling Interest, Ownership Percentage by Parent	100.00%	100.00%
IFMI, LLC [Member]
Noncontrolling Interest [Line Items]
Noncontrolling Interest, Ownership Percentage by Parent	71.30%	73.80%

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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