Commitments And Contingencies Commitments and Contingencies (Schedule of Loss Contingencies) (Details)	Sep. 30, 2019 USD ($)
Lease Inducement [Member]
Contingent Funding Commitment	$ 37,850,000
Contingent Funding Commitment, Amount Funded	(10,500,000)
Contingent Funding Commitment, Remaining Unfunded Amount	27,350,000
Bickford Senior Living [Member] | Lease Inducement [Member]
Contingent Funding Commitment	10,000,000
Contingent Funding Commitment, Amount Funded	(10,000,000)
Contingent Funding Commitment, Remaining Unfunded Amount	0
Bickford Senior Living [Member] | Incentive Loan Draws [Member]
Contingent Funding Commitment	6,000,000
Contingent Funding Commitment, Amount Funded	0
Contingent Funding Commitment, Remaining Unfunded Amount	6,000,000
Comfort Care Senior Living [Member] | Lease Inducement [Member]
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]
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]
Contingent Funding Commitment	4,850,000
Contingent Funding Commitment, Amount Funded	(500,000)
Contingent Funding Commitment, Remaining Unfunded Amount	4,350,000
Discovery Senior Living [Member] | Lease Inducement [Member]
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]
Contingent Funding Commitment	2,000,000
Contingent Funding Commitment, Amount Funded	0
Contingent Funding Commitment, Remaining Unfunded Amount	$ 2,000,000