Investments in Non-Consolidated Entities - Schedule of Investment in Non-Consolidated Entities (Details) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2024 USD ($)	Jun. 30, 2023 USD ($)	Mar. 31, 2023 USD ($)	Jun. 30, 2024 USD ($) property	Jun. 30, 2023 USD ($)	Dec. 31, 2023 USD ($)
Investments in and Advances to Affiliates [Line Items]
Investment Balance as of	$ 47,120			$ 47,120		$ 48,495
Equity in earnings (losses) of non-consolidated entities	(1,005)	$ (1,014)		(2,286)	$ 2,590
Gain on change in control of a subsidiary	209	$ 0		209	0
Total assets	3,885,867			3,885,867		4,192,775
Total liabilities	1,725,355			1,725,355		1,927,318
Lombard Street Lots, LLC
Investments in and Advances to Affiliates [Line Items]
Gain on change in control of a subsidiary	209
Total assets	4,608			4,608
Total liabilities	$ 4			$ 4
NNN MFG Cold JV L.P.
Investments in and Advances to Affiliates [Line Items]
Percentage Ownership at	20.00%			20.00%
Investment Balance as of	$ 16,464			$ 16,464		19,693
Equity in earnings (losses) of non-consolidated entities				$ (1,986)	(1,597)
NNN Office Joint Venture
Investments in and Advances to Affiliates [Line Items]
Percentage Ownership at	20.00%			20.00%
Investment Balance as of	$ 16,363			$ 16,363		16,237
Equity in earnings (losses) of non-consolidated entities				$ (74)	(263)
Etna Park 70 LLC
Investments in and Advances to Affiliates [Line Items]
Percentage Ownership at	90.00%			90.00%
Investment Balance as of	$ 9,685			$ 9,685		10,320
Equity in earnings (losses) of non-consolidated entities				$ (134)	(86)
Etna Park East LLC
Investments in and Advances to Affiliates [Line Items]
Percentage Ownership at	90.00%			90.00%
Investment Balance as of	$ 2,297			$ 2,297		2,245
Equity in earnings (losses) of non-consolidated entities				$ (92)	(72)
BSH Lessee L.P.
Investments in and Advances to Affiliates [Line Items]
Percentage Ownership at	25.00%			25.00%
Investment Balance as of	$ 0			$ 0		0
Equity in earnings (losses) of non-consolidated entities				$ 0	4,608
BSH Lessee L.P. | BSH Lessee Joint Venture Properties
Investments in and Advances to Affiliates [Line Items]
Aggregate gain on sale of properties			$ 4,791
Lombard Street Lots, LLC
Investments in and Advances to Affiliates [Line Items]
Percentage Ownership at	44.10%			44.10%
Investment Balance as of	$ 2,311			$ 2,311		$ 0
Equity in earnings (losses) of non-consolidated entities				$ 0	$ 0
NNN Office Joint Venture Properties | NNN Office Joint Venture
Investments in and Advances to Affiliates [Line Items]
Number of assets sold in joint venture | property				1
Aggregate gain on sale of properties				$ 283
Debt satisfaction costs				$ 3