Real Estate Investments - (Textuals) (Details) $ in Thousands	6 Months Ended
Jun. 30, 2019 USD ($) a Parcel	Dec. 31, 2018 USD ($)
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Assets held for sale, net	$ 7,349	$ 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

Amount classified as assets attributable to disposal group held for sale or disposed of.

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