Real Estate, Net - Additional Information (Details) - USD ($)	1 Months Ended	3 Months Ended		6 Months Ended		12 Months Ended
	May 31, 2018	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Real Estate, Net
Depreciation		$ 696,000	$ 693,000	$ 1,400,000	$ 1,400,000
Percentage of property leased				99.10%
Finite-Lived Intangible Assets, Net		11,100,000		$ 11,100,000		$ 11,100,000
Accumulated amortization				3,000,000.0		$ 2,700,000
Amortization of Intangible Assets		185,000	$ 185,000	370,000	$ 370,000
Aggregate fees paid by SCA to the Company		46,100,000		46,100,000
Remaining fees to be paid by SCA to the Company		420,000		420,000
SCA
Real Estate, Net
Contract Receivable		41,500,000		41,500,000
Construction Supervision Fee receivable		$ 5,000,000.0		5,000,000.0
Construction Costs Reimbursed				$ 51,200,000
237 11th Property
Real Estate, Net
Purchase price of property	$ 81,200,000
Business Acquisition, Transaction Costs	$ 700,000