Subsequent Events Subsequent Events (Narrative) (Details)		1 Months Ended	3 Months Ended		6 Months Ended
	Jul. 03, 2019 USD ($)	Jul. 22, 2019 USD ($)	Jun. 30, 2019 USD ($) beds_or_units renewalOptions	Jun. 30, 2018 USD ($)	Jun. 30, 2019 USD ($) beds_or_units renewalOptions	Jun. 30, 2018 USD ($)	Jul. 23, 2019 beds_or_units	Jul. 01, 2019 USD ($)	Dec. 31, 2018 USD ($)
Subsequent Event [Line Items]
Payments to Acquire Real Estate					$ 200,632,000	$ 129,558,000
Lessor, Operating Lease, Renewal Term			5 years		5 years
Minimum Annual Lease Income			$ 72,578,000	$ 69,869,000	$ 143,531,000	$ 139,122,000
Loans and Leases Receivable, Net Amount			$ 306,454,000		$ 306,454,000				$ 246,111,000
Cappella Living Solutions [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Number of Units in Real Estate Property | beds_or_units							51
Payments to Acquire Real Estate		$ 7,600,000
Asset Purchase Transaction Costs		$ 100,000
Lessor, Operating Lease, Term of Contract							15 years
Initial lease rate							7.25%
Discovery Senior Living [Member]
Subsequent Event [Line Items]
Number of Units in Real Estate Property | beds_or_units			596		596
Asset Purchase Transaction Costs					$ 1,067,000
Lessor, Operating Lease, Term of Contract			10 years		10 years
Initial lease rate			6.50%		6.50%
Number Of Additional Lease Renewal Options | renewalOptions			2		2
Lessor, Operating Lease, Renewal Term			5 years		5 years
Discovery Senior Living [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Number Of Additional Lease Renewal Options								2
Lessor, Operating Lease, Renewal Term								5 years
Minimum Annual Lease Income	$ 1,400,000
Lease Escalator Minimum								2.50%
Loans and Leases Receivable, Net Amount								$ 750,000
Note Receivable Interest Rate								6.50%