Business Segments - Schedule of Net Real Estate and Non-Recourse Property Debt, Net, by Segment (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Segment Reporting Information [Line Items]
Buildings and improvements	$ 1,050,817	$ 995,116
Land	506,968	505,153
Total real estate	1,557,785	1,500,269
Accumulated depreciation	(511,615)	(495,010)
Net real estate	1,046,170	1,005,259
Non-recourse property debt, net	429,873	447,967
Development and Redevelopment [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Buildings and improvements	114,950	61,813
Land	58,491	56,676
Total real estate	173,441	118,489
Accumulated depreciation	(772)	(447)
Net real estate	172,669	118,042
Operating Portfolio Segment [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Buildings and improvements	775,140	772,786
Land	298,459	298,459
Total real estate	1,073,599	1,071,245
Accumulated depreciation	(482,026)	(469,873)
Net real estate	591,573	601,372
Non-recourse property debt, net	429,873	447,967
Other [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Buildings and improvements	160,727	160,517
Land	150,018	150,018
Total real estate	310,745	310,535
Accumulated depreciation	(28,817)	(24,690)
Net real estate	$ 281,928	$ 285,845