Investments in Real Estate - Schedule of Land Held for Development (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2022 USD ($) a	Dec. 31, 2021 USD ($)
Real Estate [Line Items]
Land held for development	$ 108,032	$ 104,160
Real Estate Investment
Real Estate [Line Items]
Approx. Developable Acres | a	550
Land held for development	$ 108,032
LXP Amount Funded	$ 102,548
Reems & Olive | Phoenix, AZ | Real Estate Investment
Real Estate [Line Items]
Project (% owned)	95.50%
Approx. Developable Acres | a	420
Land held for development	$ 101,227
LXP Amount Funded	$ 96,788
Mt. Comfort Phase II | Indianapolis, IN | Real Estate Investment
Real Estate [Line Items]
Project (% owned)	80.00%
Approx. Developable Acres | a	116
Land held for development	$ 5,076
LXP Amount Funded	$ 4,033
Fairburn JV | Atlanta, GA | Real Estate Investment
Real Estate [Line Items]
Project (% owned)	100.00%
Approx. Developable Acres | a	14
Land held for development	$ 1,729
LXP Amount Funded	$ 1,727