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Variable Interest Entities (Schedule Of Variable Interest Entities) (Details) - USD ($) $ in Thousands | Dec. 31, 2015 | Dec. 31, 2014
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Other Receivable [Member] |  |
Variable Interest Entity [Line Items] |  |
Net assets | $ 1,531 | $ 1,902
Other Investments, At Fair Value [Member] |  |
Variable Interest Entity [Line Items] |  |
Net assets | 11,603 | 21,528
Other Assets [Member] |  |
Variable Interest Entity [Line Items] |  |
Net assets | 13,134 | 23,430
Managed Variable Interest Entity [Member] | Other Receivable [Member] |  |
Variable Interest Entity [Line Items] |  |
Net assets | 1,466 | 1,829
Managed Variable Interest Entity [Member] | Other Assets [Member] |  |
Variable Interest Entity [Line Items] |  |
Net assets | 1,466 | 1,829
Third-Party Managed Variable Interest Entity [Member] | Other Receivable [Member] |  |
Variable Interest Entity [Line Items] |  |
Net assets | 65 | 73
Third-Party Managed Variable Interest Entity [Member] | Other Investments, At Fair Value [Member] |  |
Variable Interest Entity [Line Items] |  |
Net assets | 11,603 | 21,528
Third-Party Managed Variable Interest Entity [Member] | Other Assets [Member] |  |
Variable Interest Entity [Line Items] |  |
Net assets | $ 11,668 | $ 21,601

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- Definition The reporting entity's maximum amount of exposure to loss as a result of its involvement with the Variable Interest Entity (VIE). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph b -URI http://asc.fasb.org/extlink&oid=52262685&loc=d3e5728-111685 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=52262685&loc=d3e5747-111685 + Details
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Balance Type: | credit
Period Type: | instant

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- Definition 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. + References No definition available. + Details
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- Details
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- Details
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- Details
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- Details
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- Details
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