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Organization and Nature of Operations (Narrative) (Details) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2015 USD ($) segment | Dec. 31, 2014
Securities [Line Items] |  |
Assets under management | $ 3,910 |
Number of Operating Segments | segment | 3 |
CDOs [Member] |  |
Securities [Line Items] |  |
Assets under management | $ 3,750 |
Assets under management which are collateralized debt obligations percentage | 95.80% |
Star Asia Manager [Member] |  |
Securities [Line Items] |  |
Equity Method Investment, Ownership Percentage | 0.00% | 0.00%

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