Commitments And Contingencies Commitments and Contingencies (Schedule of Loss Contingencies) (Details)	Mar. 31, 2019 USD ($)
Lease Inducement [Member]
Contingent Funding Commitment	$ 29,850,000
Contingent Funding Commitment, Amount Funded	(9,000,000)
Contingent Funding Commitment, Remaining Unfunded Amount	20,850,000
Bickford Senior Living [Member] | Lease Inducement [Member]
Contingent Funding Commitment	10,000,000
Contingent Funding Commitment, Amount Funded	(8,750,000)
Contingent Funding Commitment, Remaining Unfunded Amount	1,250,000
Bickford Senior Living [Member] | Incentive Loan Draws [Member]
Contingent Funding Commitment	8,000,000
Contingent Funding Commitment, Amount Funded	(250,000)
Contingent Funding Commitment, Remaining Unfunded Amount	7,750,000
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	0
Contingent Funding Commitment, Remaining Unfunded Amount	4,850,000
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