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Real Estate Investments, Net - Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas (Details)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Entity-wide revenue percentage	55.80%	55.70%
Michigan
Revenues from External Customers and Long-Lived Assets [Line Items]
Entity-wide revenue percentage	13.70%	13.70%
United Kingdom
Revenues from External Customers and Long-Lived Assets [Line Items]
Entity-wide revenue percentage	19.40%	19.00%

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- Definition

Entity Wide Revenue, Major State, Percentage

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No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Details

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X

- Details

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Period Type:

X

- Details

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