Investments in Real Estate - Investments in Existing Properties Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Investments in real estate properties
Capitalized costs on existing portfolio	$ 19,080	$ 8,708	$ 23,536
Investments in existing properties
Investments in real estate properties
Capitalized costs on existing portfolio	21,900	7,000
Re-leasing costs	6,300	1,800
Recurring capital expenditures	978	198
Nonrecurring building improvements	$ 14,600	$ 5,000