Commitments and Contingencies - Additional Information (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Commitments and Contingencies [Line Items]
Reimbursement to tenants			$ 23,800,000
Employer matching contribution	$ 19,000	$ 17,000	$ 100,000	$ 100,000
Executive Officers
Commitments and Contingencies [Line Items]
Employment agreement, initial term			4 years
Employment agreement, automatic extension period upon non-renewal notice not provided			1 year
Employment agreement, base salary term after termination			12 months
Employment agreement, COBRA term after termination			12 months
401(k) Plan | Maximum
Commitments and Contingencies [Line Items]
Employer matching contribution, percent of match			100.00%
Employer matching contribution, percent of eligible compensation			3.00%
401(k) Plan | Minimum
Commitments and Contingencies [Line Items]
Employer matching contribution, percent of match			50.00%
Employer matching contribution, percent of eligible compensation			2.00%