Organization, Basis of Presentation and Summary of Significant Accounting Policies - Narrative (Details)	12 Months Ended
	Dec. 31, 2021 USD ($) segment	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Organization, Basis of Presentation and Summary of Significant Accounting Policies (Details) [Line Items]
Taxable income minimum distribution portion not subject to federal taxation (in percentage)	90.00%
Real estate improvements	$ 48,600,000	$ 38,700,000
Acquisition transaction costs	0	0	$ 0
Allowance for doubtful accounts receivable	18,400,000	$ 18,600,000
Lease concession, deferral amount	11,100,000
Lease concession, deferral amount rebilled	5,600,000
Lease concession deferral amount rebilled and collected	$ 4,800,000
Lease concession deferral amount rebilled percent collected	85.40%
Number of segments | segment	1
Minimum | Building
Organization, Basis of Presentation and Summary of Significant Accounting Policies (Details) [Line Items]
PPE useful life (in years)	39 years
Minimum | Building Improvements
Organization, Basis of Presentation and Summary of Significant Accounting Policies (Details) [Line Items]
PPE useful life (in years)	10 years
Minimum | Furniture and Fixtures
Organization, Basis of Presentation and Summary of Significant Accounting Policies (Details) [Line Items]
PPE useful life (in years)	3 years
Maximum | Building
Organization, Basis of Presentation and Summary of Significant Accounting Policies (Details) [Line Items]
PPE useful life (in years)	40 years
Maximum | Building Improvements
Organization, Basis of Presentation and Summary of Significant Accounting Policies (Details) [Line Items]
PPE useful life (in years)	20 years
Maximum | Furniture and Fixtures
Organization, Basis of Presentation and Summary of Significant Accounting Policies (Details) [Line Items]
PPE useful life (in years)	10 years