Real Estate Facilities and Real Estate Held for Sale - Additional Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Real Estate Properties [Line Items]
Real estate reclassified to held for sale	$ 45,049,915
Leasing and Leasing Related Revenues [Member] | Tallahassee Student Property [Member]
Real Estate Properties [Line Items]
Real estate reclassified to held for sale	4,100,000	$ 3,600,000	$ 3,900,000
Property Operating Expenses [Member] | Tallahassee Student Property [Member]
Real Estate Properties [Line Items]
Real estate reclassified to held for sale	$ 1,700,000	$ 1,700,000	$ 1,800,000