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Investment And Other Gains (Tables) | 3 Months Ended
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Mar. 31, 2018
Investment And Other Gains [Abstract] |
Schedule of Investment And Other Gains | The following table summarizes our investment and other gains (in thousands):
| Three Months Ended
| March 31,
| 2018 |  | 2017
Gains on sale of real estate | $ | — |  |  | $ | 50 |
Gains on sales of marketable securities | — |  |  | 10,038 |
| $ | — |  |  | $ | 10,088 |

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- Definition Investment And Other Gains [Abstract] + References No definition available. + Details
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- Definition Tabular disclosure of the detailed components of other nonoperating income. May include methodology, assumptions and amounts for: (a) dividends, (b) interest on securities, (c) profits on securities (net of losses), and (d) miscellaneous other income items. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.7) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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