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Real Estate Investments - (Textuals) (Details) $ in Thousands | Mar. 31, 2019 USD ($) a Parcel | Dec. 31, 2018 USD ($)
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Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |
Assets held for sale, net | $ 7,345 | $ 11,599
Assets Held-for-sale [Member] | Land Held For Development [Member] |  |
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |
Assets held for sale, net | $ 7,300 |
Assets Held-for-sale [Member] | Other [Member] |  |
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |
Number of Parcels | Parcel | 2 |
Acreage of Land | a | 35.2 |

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