Real Estate Assets amortization (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Liabilities	$ 70,900,000
Revenues	451,142,000	$ 501,185,000	$ 470,427,000
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	20,532,000	(181,603,000)	(7,458,000)
Amortization of Deferred Charges	$ 9,700,000	$ 6,500,000	$ 9,100,000