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Fair Value Disclosures (Schedule Of Assets And Liabilities Measured With Level 3 Inputs) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014
Trading Securities [Member] |  |
Schedule of additional information about assets and liabilities measured at fair value on a recurring basis level 3 inputs |  |
Level 3 inputs, Beginning balance |  | $ 186
Accretion of income |  |
Sales |  | $ (183)
Trading Securities [Member] | Trading Revenue [Member] |  |
Schedule of additional information about assets and liabilities measured at fair value on a recurring basis level 3 inputs |  |
Transactions included in income |  | (3)
Alternative Investments [Member] |  |
Schedule of additional information about assets and liabilities measured at fair value on a recurring basis level 3 inputs |  |
Level 3 inputs, Beginning balance | $ 25,246 | 24,078
Transfers into Level 3 | 0 |
Transfers out of Level 3 | 0 |
Accretion of income | 2,333 | 1,577
Purchases |  | 25,288
Sales | (9,601) | (25,852)
Level 3 inputs, Ending balance | 14,105 | 25,246
Change in unrealized gains /(losses) for the period included in earnings | (1,676) | 178
Alternative Investments [Member] | Principal Investing [Member] |  |
Schedule of additional information about assets and liabilities measured at fair value on a recurring basis level 3 inputs |  |
Transactions included in income | (3,873) | 155
Other Investments, Equity Securities [Member] |  |
Schedule of additional information about assets and liabilities measured at fair value on a recurring basis level 3 inputs |  |
Level 3 inputs, Beginning balance | 3,717 |
Sales | (1,203) |
Level 3 inputs, Ending balance | 2,502 | 3,717
Change in unrealized gains /(losses) for the period included in earnings | (12) |
Other Investments, Equity Securities [Member] | Principal Investing [Member] |  |
Schedule of additional information about assets and liabilities measured at fair value on a recurring basis level 3 inputs |  |
Transactions included in income | (12) |
Other Investments, Equity Securities [Member] | Alternative Investments [Member] |  |
Schedule of additional information about assets and liabilities measured at fair value on a recurring basis level 3 inputs |  |
Level 3 inputs, Beginning balance | 3,717 | $ 24,043
Accretion of income |  |
Sales |  | $ (22,204)
Level 3 inputs, Ending balance |  | 3,717
Change in unrealized gains /(losses) for the period included in earnings |  | 1,800
Other Investments, Equity Securities [Member] | Alternative Investments [Member] | Principal Investing [Member] |  |
Schedule of additional information about assets and liabilities measured at fair value on a recurring basis level 3 inputs |  |
Transactions included in income |  | 1,878
EuroDekania [Member] | Alternative Investments [Member] |  |
Schedule of additional information about assets and liabilities measured at fair value on a recurring basis level 3 inputs |  |
Level 3 inputs, Beginning balance | 3,717 | $ 4,192
Accretion of income |  |
Sales | (1,203) | $ (2,275)
Level 3 inputs, Ending balance | 2,502 | 3,717
Change in unrealized gains /(losses) for the period included in earnings | (12) | 1,800
EuroDekania [Member] | Alternative Investments [Member] | Principal Investing [Member] |  |
Schedule of additional information about assets and liabilities measured at fair value on a recurring basis level 3 inputs |  |
Transactions included in income | (12) | 1,800
Star Asia [Member] | Alternative Investments [Member] |  |
Schedule of additional information about assets and liabilities measured at fair value on a recurring basis level 3 inputs |  |
Level 3 inputs, Beginning balance |  | $ 17,104
Accretion of income |  |
Sales |  | $ (17,182)
Star Asia [Member] | Alternative Investments [Member] | Principal Investing [Member] |  |
Schedule of additional information about assets and liabilities measured at fair value on a recurring basis level 3 inputs |  |
Transactions included in income |  | 78
Star Asia Special Situations Fund [Member] | Alternative Investments [Member] |  |
Schedule of additional information about assets and liabilities measured at fair value on a recurring basis level 3 inputs |  |
Level 3 inputs, Beginning balance |  | $ 2,747
Accretion of income |  |
Sales |  | $ (2,747)
CLO's [Member] | Alternative Investments [Member] |  |
Schedule of additional information about assets and liabilities measured at fair value on a recurring basis level 3 inputs |  |
Level 3 inputs, Beginning balance | 21,518 |
Accretion of income | 2,333 | 1,577
Purchases |  | 25,288
Sales | (8,398) | (3,648)
Level 3 inputs, Ending balance | 11,569 | 21,518
Change in unrealized gains /(losses) for the period included in earnings | (1,687) | (1,622)
CLO's [Member] | Alternative Investments [Member] | Principal Investing [Member] |  |
Schedule of additional information about assets and liabilities measured at fair value on a recurring basis level 3 inputs |  |
Transactions included in income | (3,884) | (1,699)
CDOs [Member] | Alternative Investments [Member] |  |
Schedule of additional information about assets and liabilities measured at fair value on a recurring basis level 3 inputs |  |
Level 3 inputs, Beginning balance | 11 | $ 35
Accretion of income |  |
Level 3 inputs, Ending balance | 34 | $ 11
Change in unrealized gains /(losses) for the period included in earnings | 23 |
CDOs [Member] | Alternative Investments [Member] | Principal Investing [Member] |  |
Schedule of additional information about assets and liabilities measured at fair value on a recurring basis level 3 inputs |  |
Transactions included in income | $ 23 | (24)
CLO's [Member] | Trading Securities [Member] |  |
Schedule of additional information about assets and liabilities measured at fair value on a recurring basis level 3 inputs |  |
Level 3 inputs, Beginning balance |  | $ 186
Accretion of income |  |
Sales |  | $ (183)
CLO's [Member] | Trading Securities [Member] | Trading Revenue [Member] |  |
Schedule of additional information about assets and liabilities measured at fair value on a recurring basis level 3 inputs |  |
Transactions included in income |  | $ (3)

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- Definition Amount of unrealized (holding) gain (loss) which is included in the statement of income (or changes in net assets) related to those assets still held at the reporting date for which fair value is measured on a recurring basis using significant unobservable inputs (Level 3). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
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- Definition Amount of gain (loss) recognized in the income statement for financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
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