Commitments and Contingencies (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021
Commitments And Contingencies Disclosure [Abstract]
Weighted average remaining lease term	30 years
Weighted average discount rate	4.80%
Rent expense	$ 0.3		$ 0.4
Percentage of contractual base rents and monthly tenant reimbursements collected	97.00%	97.00%
Lease rent deferred	$ 3.5
Lease rent waived	$ 2.4
Weighted average payback period for remaining deferred rent receivable	10 months