Segment Information (Net Income to NOI Reconciliation) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Segment Reporting [Abstract]
Net income	$ 59,570	$ 20,112	$ 133,501	$ 142,390
Depreciation and amortization expense	110,349	134,526	324,076	370,631
General and administrative expense	35,838	29,174	116,843	102,292
Transaction related costs and other	813	996	1,501	4,961
Income from partially owned entities	(18,269)	(24,341)	(72,207)	(83,775)
(Income) loss from real estate fund investments	(1,783)	111	(1,662)	(5,421)
Interest and other investment income, net	(12,934)	(5,228)	(35,792)	(9,282)
Interest and debt expense	88,126	76,774	261,528	191,523
Net gains on disposition of wholly owned and partially owned assets	(56,136)	0	(64,592)	(35,384)
Income tax expense	11,684	3,711	20,848	14,686
NOI from partially owned entities	72,100	76,020	210,942	228,772
NOI attributable to noncontrolling interests in consolidated subsidiaries	(8,363)	(14,766)	(38,869)	(51,100)
NOI at share	280,995	297,089	856,117	870,293
Non-cash adjustments for straight-line rents, amortization of acquired below-market leases, net, and other	(2,980)	(1,419)	(3,498)	(8,824)
NOI at share - cash basis	$ 278,015	$ 295,670	$ 852,619	$ 861,469