Investments in Real Estate - Land Held for Development (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($) a extensionOption acre	Dec. 31, 2021 USD ($)
Real Estate [Line Items]
GAAP Investment Balance as of 12/31/2022	$ 84,412	$ 104,160
Real Estate Investment
Real Estate [Line Items]
Approx. Developable Acres (unaudited) | a	450
GAAP Investment Balance as of 12/31/2022	$ 84,412
LXP Amount Funded as of 12/31/2022	$ 79,906
Reems & Olive | Phoenix, AZ | Real Estate Investment
Real Estate [Line Items]
Approx. Developable Acres (unaudited) | a	320
GAAP Investment Balance as of 12/31/2022	$ 77,379
LXP Amount Funded as of 12/31/2022	$ 73,957
Project ownership percentage	95.50%
Number of leased acres | acre	100
Number of acres | acre	420
Lease term	20 years
Number of lease extension options | extensionOption	3
Real estate investment property, lease extension term	10 years
Initial annual rental payments	$ 5,228
Increase in annual rental payments, percent	0.04
Mt. Comfort Phase II | Indianapolis, IN | Real Estate Investment
Real Estate [Line Items]
Approx. Developable Acres (unaudited) | a	116
GAAP Investment Balance as of 12/31/2022	$ 5,301
LXP Amount Funded as of 12/31/2022	$ 4,213
Project ownership percentage	80.00%
Fairburn JV | Atlanta, GA | Real Estate Investment
Real Estate [Line Items]
Approx. Developable Acres (unaudited) | a	14
GAAP Investment Balance as of 12/31/2022	$ 1,732
LXP Amount Funded as of 12/31/2022	$ 1,736
Project ownership percentage	100.00%