Commitments And Contingencies Schedule of Contingencies (Details)	Dec. 31, 2018 USD ($)
Lease Inducement [Member]
Loss Contingencies [Line Items]
Contingent Funding Commitment	$ 24,850,000
Contingent Funding Commitment, Amount Funded	(7,750,000)
Contingent Funding Commitment, Remaining Unfunded Amount	17,100,000
Bickford Senior Living [Member] | Lease Inducement [Member]
Loss Contingencies [Line Items]
Contingent Funding Commitment	10,000,000
Contingent Funding Commitment, Amount Funded	(7,500,000)
Contingent Funding Commitment, Remaining Unfunded Amount	2,500,000
Bickford Senior Living [Member] | Incentive Loan Draws [Member]
Loss Contingencies [Line Items]
Contingent Funding Commitment	8,000,000
Contingent Funding Commitment, Amount Funded	(250,000)
Contingent Funding Commitment, Remaining Unfunded Amount	7,750,000
Navion Senior Solutions [Member] | Lease Inducement [Member]
Loss Contingencies [Line Items]
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]
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