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Troubled Debt Restructurings Schedule Of Troubled Debt Restructurings On Financing Receivables (Details) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2018 USD ($) contract | Jun. 30, 2018 USD ($) contract | Jun. 30, 2017 contract
Troubled Debt Restructuring, Subsequent Periods [Line Items] |  |  |
Financing Receivable, Modifications, Pre-Modification Recorded Investment | $ 86 | $ 86 |
Financing Receivable, Modifications, Post-Modification Recorded Investment | $ 86 | $ 86 |
Troubled Debt Restructuring Modifications Number Of Contracts | contract | 1 | 1 | 0
Residential Single Family |  |  |
Troubled Debt Restructuring, Subsequent Periods [Line Items] |  |  |
Financing Receivable, Modifications, Pre-Modification Recorded Investment | $ 86 | $ 86 |
Financing Receivable, Modifications, Post-Modification Recorded Investment | $ 86 | $ 86 |
Troubled Debt Restructuring Modifications Number Of Contracts | contract | 1 | 1 |

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- Definition Post-modification amount of investment in financing receivables modified by troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953676-111524 + Details
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