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Financial Instruments (Schedule Of Other Investments) (Details) - USD ($) $ in Thousands | Dec. 31, 2015 | Dec. 31, 2014
--- | --- | ---
Schedule of Investments [Line Items] |  |
Other investments, Cost | $ 21,666 | $ 35,584
Other investments, Carrying Value | 14,880 | 28,399
Other investments, Unrealized Gain (Loss) | (6,786) | (7,185)
EuroDekania [Member] |  |
Schedule of Investments [Line Items] |  |
Other investments, Carrying Value | 2,502 | 3,717
Tiptree Financial, Inc. [Member] |  |
Schedule of Investments [Line Items] |  |
Other investments, Carrying Value | 353 | 2,472
Other Equity Securities [Member] |  |
Schedule of Investments [Line Items] |  |
Other investments, Carrying Value | 43 | 33
CLO's [Member] |  |
Schedule of Investments [Line Items] |  |
Other investments, Cost | 14,877 | 23,139
Other investments, Carrying Value | 11,569 | 21,518
Other investments, Unrealized Gain (Loss) | (3,308) | (1,621)
CDOs [Member] |  |
Schedule of Investments [Line Items] |  |
Other investments, Cost | 193 | 193
Other investments, Carrying Value | 34 | 11
Other investments, Unrealized Gain (Loss) | (159) | (182)
Equity Securities [Member] |  |
Schedule of Investments [Line Items] |  |
Other investments, Cost | 6,485 | 12,134
Other investments, Carrying Value | 2,898 | 6,222
Other investments, Unrealized Gain (Loss) | (3,587) | (5,912)
Equity Securities [Member] | EuroDekania [Member] |  |
Schedule of Investments [Line Items] |  |
Other investments, Cost | 5,300 | 6,503
Other investments, Carrying Value | 2,502 | 3,717
Other investments, Unrealized Gain (Loss) | (2,798) | (2,786)
Equity Securities [Member] | Tiptree Financial, Inc. [Member] |  |
Schedule of Investments [Line Items] |  |
Other investments, Cost | 1,009 | 5,455
Other investments, Carrying Value | 353 | 2,472
Other investments, Unrealized Gain (Loss) | (656) | (2,983)
Equity Securities [Member] | Other Equity Securities [Member] |  |
Schedule of Investments [Line Items] |  |
Other investments, Cost | 176 | 176
Other investments, Carrying Value | 43 | 33
Other investments, Unrealized Gain (Loss) | (133) | (143)
Residential Loans [Member] |  |
Schedule of Investments [Line Items] |  |
Other investments, Cost | 111 | 118
Other investments, Carrying Value | 383 | 565
Other investments, Unrealized Gain (Loss) | 272 | 447
Foreign Currency Forward Contracts [Member] |  |
Schedule of Investments [Line Items] |  |
Other investments, Carrying Value | (4) | 83
Other investments, Unrealized Gain (Loss) | $ (4) | $ 83

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