Segment Reporting (Summary of Net Operating Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Statement [Line Items]
Straight line rent adjustments, net	$ 10,255	$ 8,021
Equity in earnings of unconsolidated joint ventures	3,815	16,268
Interest expense	(19,999)	(22,507)
Depreciation and amortization expense	(94,001)	(93,573)
Gain on sale of properties	210,747	21,360
Interest and other income, net	825	463
General and administrative expenses	(23,913)	(24,217)
Gain on land sales	1,092	1,238
Other operating expenses	(779)	(1,145)
Loss on extinguishment of debt	(21,948)	(70)
Non-incremental costs related to successful leases	(5,512)	(2,958)
Income before income taxes	257,807	85,388
Operating Segments [Member]
Statement [Line Items]
Property Level Net Operating Income – Cash Basis	192,681	164,279
Property Level Net Income, Cash Basis, Continuing Operations	193,441	178,008
Operating Segments [Member] | Industrial Operations
Statement [Line Items]
Property Level Net Operating Income – Cash Basis	189,528	163,006
Operating Segments [Member] | All Other Segments [Member]
Statement [Line Items]
Property Level Net Operating Income – Cash Basis	3,153	1,273
Operating Segments [Member] | Service Operations [Member]
Statement [Line Items]
Earnings from Service Operations	1,480	1,650
Segment Reconciling Items [Member]
Statement [Line Items]
PNOI from sold properties	760	13,729
Straight line rent adjustments, net	10,255	8,021
Revenues Related to Lease Buyouts	170	310
Amortization of lease concessions and above and below market rents	2,588	2,832
Intercompany rents and other adjusting items	(662)	(418)
Corporate, Non-Segment [Member]
Statement [Line Items]
Equity in earnings of unconsolidated joint ventures	3,815	16,268
Interest expense	(19,999)	(22,507)
Depreciation and amortization expense	(94,001)	(93,573)
Gain on sale of properties	210,747	21,360
Interest and other income, net	825	463
General and administrative expenses	(23,913)	(24,217)
Gain on land sales	1,092	1,238
Other operating expenses	(779)	(1,145)
Loss on extinguishment of debt	(21,948)	(70)
Non-incremental costs related to successful leases	(5,512)	(2,958)
Other non-segment revenues and expenses, net	$ 208	$ 126