Investments in Real Estate - Schedule of Real Estate Properties Development (Details) $ in Thousands	1 Months Ended	9 Months Ended
	Nov. 04, 2021 ft²	Sep. 30, 2021 USD ($) ft² building	Dec. 31, 2020 USD ($)
Real Estate [Line Items]
GAAP Investment Balance as of 9/30/2021		$ 185,704	$ 75,906
Real Estate Investment
Real Estate [Line Items]
Estimated Project Cost		484,000
GAAP Investment Balance as of 9/30/2021		185,704
Amount Funded as of 9/30/2021		$ 154,969
Atlanta, Georgia | Fairburn
Real Estate [Line Items]
Project (% owned)		87.00%
Atlanta, Georgia | Real Estate Investment | Fairburn
Real Estate [Line Items]
# of Buildings | building		1
Estimated Sq. Ft. | ft²		907,675
Estimated Project Cost		$ 53,800
GAAP Investment Balance as of 9/30/2021		47,551
Amount Funded as of 9/30/2021		$ 43,900
% Leased as of 9/30/2021		0.00%
Atlanta, Georgia | Real Estate Investment | Fairburn | Subsequent Event
Real Estate [Line Items]
Approximate Lease Term (Years)	7 years
Leased area | ft²	907,675
Phoenix, AZ | KeHE Distributors, BTS
Real Estate [Line Items]
Project (% owned)		100.00%
Phoenix, AZ | Cotton 303
Real Estate [Line Items]
Project (% owned)		93.00%
Phoenix, AZ | Real Estate Investment | KeHE Distributors, BTS
Real Estate [Line Items]
# of Buildings | building		1
Estimated Sq. Ft. | ft²		468,182
Estimated Project Cost		$ 72,000
GAAP Investment Balance as of 9/30/2021		60,044
Amount Funded as of 9/30/2021		$ 52,329
% Leased as of 9/30/2021		100.00%
Approximate Lease Term (Years)		15 years
Phoenix, AZ | Real Estate Investment | Cotton 303
Real Estate [Line Items]
# of Buildings | building		2
Estimated Sq. Ft. | ft²		880,678
Estimated Project Cost		$ 84,200
GAAP Investment Balance as of 9/30/2021		23,636
Amount Funded as of 9/30/2021		$ 20,339
% Leased as of 9/30/2021		0.00%
Indianapolis, IN | Mt. Comfort
Real Estate [Line Items]
Project (% owned)		80.00%
Indianapolis, IN | Real Estate Investment | Mt. Comfort
Real Estate [Line Items]
# of Buildings | building		1
Estimated Sq. Ft. | ft²		1,053,360
Estimated Project Cost		$ 60,300
GAAP Investment Balance as of 9/30/2021		15,808
Amount Funded as of 9/30/2021		$ 9,912
% Leased as of 9/30/2021		0.00%
Greenville-Spartanburg, SC | Smith Farms
Real Estate [Line Items]
Project (% owned)		90.00%
Greenville-Spartanburg, SC | Real Estate Investment | Smith Farms
Real Estate [Line Items]
# of Buildings | building		3
Estimated Sq. Ft. | ft²		1,939,524
Estimated Project Cost		$ 132,800
GAAP Investment Balance as of 9/30/2021		17,609
Amount Funded as of 9/30/2021		$ 13,396
% Leased as of 9/30/2021		0.00%
Central Florida | Ocala
Real Estate [Line Items]
Project (% owned)		80.00%
Central Florida | Real Estate Investment | Ocala
Real Estate [Line Items]
# of Buildings | building		1
Estimated Sq. Ft. | ft²		1,085,280
Estimated Project Cost		$ 80,900
GAAP Investment Balance as of 9/30/2021		21,056
Amount Funded as of 9/30/2021		$ 15,093
% Leased as of 9/30/2021		0.00%