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Summary Of Significant Accounting Policies (Narrative) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
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Dec. 31, 2017 | Sep. 30, 2018
Summary Of Significant Accounting Policies [Abstract] |  |
Other assets | $ 1,672 | $ 2,927
Tax benefit from Tax Cuts and Jobs Act | 1,359,000 |
Maximum normal term for resale agreements |  | 1 month
Estimated debt in fair value | $ 53,657 | $ 52,826

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- Definition Amount of income tax expense (benefit) for remeasurement of deferred tax from change in tax rate pursuant to Tax Cuts and Jobs Act of 2017. + References No definition available. + Details
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- Definition Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=109250915&loc=d3e13433-108611 + Details
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