Related Party Transactions and Arrangements (Fees Paid in Connection With the Operations of the Company) (Details)			12 Months Ended
	Jul. 25, 2019 USD ($)	Feb. 17, 2017	Dec. 31, 2019 USD ($) $ / shares shares	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Related Party Transaction [Line Items]
Term of agreement		10 years
Renewal term		10 years
Board of directors voting percentage		67.00%
Period of notice		45 days
Share price, net (in dollars per share) | $ / shares			$ 22.50
Asset threshold for assignment of agreement			$ 100,000,000.0
Advisor
Related Party Transaction [Line Items]
Shares approved for issuance (in shares) | shares			359,250
Capped Reimbursement Amount
Related Party Transaction [Line Items]
Reimbursed fees to related party, capped reimbursement amount			$ 7,200,000
American Realty Capital Healthcare Advisors, LLC | Advance on Loan or Other Investment | Advisor
Related Party Transaction [Line Items]
Financing advance fees as a percentage of benchmark, expected third party costs			0.50%
Financing advance fees as a percentage of benchmark, expected company portfolio cost			4.50%
American Realty Capital Healthcare Advisors, LLC | Contract Purchase Price | Advisor
Related Party Transaction [Line Items]
Quarterly asset management fee			0.1875%
American Realty Capital Healthcare Advisors, LLC | Gross Revenue, Stand-alone Single-tenant Net Leased Properties | Advisor
Related Party Transaction [Line Items]
Property management fees			1.50%
American Realty Capital Healthcare Advisors, LLC | Gross Revenue, Excluding Stand-alone Single-tenant Net Leased Properties | Advisor
Related Party Transaction [Line Items]
Property management fees			2.50%
American Realty Capital Healthcare Advisors, LLC
Related Party Transaction [Line Items]
Period of notice		60 days
Second Amended and Restated Advisory Agreement
Related Party Transaction [Line Items]
Period of notice of termination		365 days
Monthly Base Management Fee | American Realty Capital Healthcare Advisors, LLC
Related Party Transaction [Line Items]
Transaction amount			$ 1,625,000
Base management fee of net proceeds			1.25%
Quarterly Variable Management Fee, Benchmark One | American Realty Capital Healthcare Advisors, LLC
Related Party Transaction [Line Items]
Basis of core earnings, percent			15.00%
Basis of core earnings (in usd per share) | $ / shares			$ 0.375
Quarterly Variable Management Fee, Benchmark Two | American Realty Capital Healthcare Advisors, LLC
Related Party Transaction [Line Items]
Basis of core earnings, percent			10.00%
Basis of core earnings (in usd per share) | $ / shares			$ 0.47
Amended and Restated Property Management and Leasing Agreement
Related Party Transaction [Line Items]
Renewal term		1 year
Period of notice of termination		90 days
Reimbursements of Administrative Services | American Realty Capital Healthcare Advisors, LLC
Related Party Transaction [Line Items]
Transaction amount			$ 10,600,000	$ 8,900,000	$ 7,600,000
Third Amended And Restated Advisory Agreement | American Realty Capital Healthcare Advisors, LLC | Advisor
Related Party Transaction [Line Items]
Contingent good faith negotiations of fixed component, term	12 months
Third Amended And Restated Advisory Agreement | American Realty Capital Healthcare Advisors, LLC | Advisor And Company
Related Party Transaction [Line Items]
Contingent good faith negotiations of fixed component, term	90 days
Third Amended And Restated Advisory Agreement | American Realty Capital Healthcare Advisors, LLC | Capped Reimbursement Amount
Related Party Transaction [Line Items]
Reimbursed fees to related party, capped reimbursement amount	$ 6,800,000
Third Amended And Restated Advisory Agreement | American Realty Capital Healthcare Advisors, LLC | Real Estate Cost
Related Party Transaction [Line Items]
Fee multiplier	4
Real estate cost percent multiplier	0.0029
Reduction of real estate cost percent	0.250
Third Amended And Restated Advisory Agreement | American Realty Capital Healthcare Advisors, LLC | Consumer Price Index
Related Party Transaction [Line Items]
Cost of living percent multiplier	0.030
CPI benchmark	100.0
Maximum | American Realty Capital Healthcare Advisors, LLC | Gross Revenue, Managed Properties | Advisor
Related Party Transaction [Line Items]
Oversight fees earned by related party			1.00%