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Troubled Debt Restructurings Schedule Of Troubled Debt Restructurings On Financing Receivables (Details) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2019 USD ($) contract | Dec. 31, 2018 contract
Troubled Debt Restructuring, Subsequent Periods [Line Items] |  |
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | 1 |
Financing Receivable, Modifications, Number of Contracts | 19 | 19
Troubled Debt Restructurings Within Previous Twelve Months [Member] |  |
Troubled Debt Restructuring, Subsequent Periods [Line Items] |  |
Troubled Debt Restructuring Modifications Recorded Investment | $ | $ 79 |
Troubled Debt Restructurings Within Previous Twelve Months [Member] | Residential Single Family |  |
Troubled Debt Restructuring, Subsequent Periods [Line Items] |  |
Financing Receivable, Modifications, Number of Contracts | 1 |
Troubled Debt Restructuring Modifications Recorded Investment | $ | $ 79 |

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- Definition Troubled Debt Restructuring, Subsequent Periods [Line Items] + References No definition available. + Details
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- Definition Number of financing receivables that have been 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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- Definition Number of financing receivables that have been modified by troubled debt restructurings within the previous 12 months and for which there was a payment default. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953682-111524 + Details
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