Commitments and Contingencies - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Commitments and Contingencies [Line Items]
Reimbursement to tenants	$ 16.3
Employer matching contribution	$ 0.2	$ 0.2	$ 0.1
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	5.00%