Income Taxes , Narrative (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Operating Loss Carryforwards [Line Items]
Minimum Percent of Income From Qualifying Sources to Allow For Real Estate Investment Trust Classification			9500.00%
Required Minimum Percent of Taxable Income Distributed to Stock Holders			9000.00%
Unrecognized Tax Benefits	$ 0	$ 0	$ 0	$ 0
Provision for state income taxes	1,200,000	100,000	1,000,000.0	600,000
Deferred Income Tax Expense (Benefit)	66,000	$ (112,000)	(81,000)	242,000
Deferred Income Tax Charge
Operating Loss Carryforwards [Line Items]
Deferred Income Tax Expense (Benefit)				$ 200,000
Foreign Tax Authority [Member]
Operating Loss Carryforwards [Line Items]
Deferred Tax Liabilities, Gross	20,400,000		20,400,000		$ 20,500,000
Domestic Tax Authority [Member]
Operating Loss Carryforwards [Line Items]
Deferred Tax Liabilities, Gross	$ 100,000		$ 100,000		$ 100,000