Real Estate Investments, Net (Transfer of Operations) (Details) - USD ($) $ in Thousands		12 Months Ended
	Jun. 08, 2017	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Business Acquisition [Line Items]
Gain on acquisition		$ 0	$ 0	$ 307
Transfer of Operations
Business Acquisition [Line Items]
Buildings, fixtures and improvements	$ 723
Cash and cash equivalents	865
Prepaid expenses and other assets	651
Total assets acquired	2,239
Accounts payable and accrued expenses	1,188
Deferred rent	744
Total liabilities acquired	1,932
Gain on acquisition	$ 307