Commitments, Contingencies and Uncertainties (Schedule of Contingencies) (Details)	Dec. 31, 2021 USD ($)
Loss Contingencies [Line Items]
Contingent Funding Commitment	$ 33,850,000
Contingent Funding Commitment, Amount Funded	(1,500,000)
Contingent Funding Commitment, Remaining Unfunded Amount	32,350,000
Timber Ridge OpCo [Member] | Lease Inducement [Member]
Loss Contingencies [Line Items]
Contingent Funding Commitment	10,000,000
Contingent Funding Commitment, Amount Funded	0
Contingent Funding Commitment, Remaining Unfunded Amount	10,000,000
Comfort Care Senior Living [Member] | Lease Inducement [Member]
Loss Contingencies [Line Items]
Contingent Funding Commitment	6,000,000
Contingent Funding Commitment, Amount Funded	0
Contingent Funding Commitment, Remaining Unfunded Amount	6,000,000
Wingate Healthcare [Member] | Lease Inducement [Member]
Loss Contingencies [Line Items]
Contingent Funding Commitment	5,000,000
Contingent Funding Commitment, Amount Funded	0
Contingent Funding Commitment, Remaining Unfunded Amount	5,000,000
Navion Senior Solutions [Member] | Lease Inducement [Member]
Loss Contingencies [Line Items]
Contingent Funding Commitment	4,850,000
Contingent Funding Commitment, Amount Funded	(1,500,000)
Contingent Funding Commitment, Remaining Unfunded Amount	3,350,000
Discovery Senior Living [Member] | Lease Inducement [Member]
Loss Contingencies [Line Items]
Contingent Funding Commitment	4,000,000
Contingent Funding Commitment, Amount Funded	0
Contingent Funding Commitment, Remaining Unfunded Amount	4,000,000
Ignite Medical Resorts [Member] | Lease Inducement [Member]
Loss Contingencies [Line Items]
Contingent Funding Commitment	2,000,000
Contingent Funding Commitment, Amount Funded	0
Contingent Funding Commitment, Remaining Unfunded Amount	2,000,000
Sante Partners | Lease Inducement [Member]
Loss Contingencies [Line Items]
Contingent Funding Commitment	2,000,000
Contingent Funding Commitment, Remaining Unfunded Amount	$ 2,000,000