Segment Information (Net Income to NOI Reconciliation) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Segment Reporting [Abstract]
Net income	$ 20,112	$ 71,765	$ 142,390	$ 175,590
Depreciation and amortization expense	134,526	100,867	370,631	285,998
General and administrative expense	29,174	25,553	102,292	100,341
Transaction related costs and other	996	9,681	4,961	10,630
Income from partially owned entities	(24,341)	(26,269)	(83,775)	(86,768)
Loss (income) from real estate fund investments	111	66	(5,421)	(5,107)
Interest and other investment income, net	(5,228)	(633)	(9,282)	(3,694)
Interest and debt expense	76,774	50,946	191,523	152,904
Net gains on disposition of wholly owned and partially owned assets	0	(10,087)	(35,384)	(35,811)
Income tax expense (benefit)	3,711	(25,376)	14,686	(20,551)
NOI from partially owned entities	76,020	75,644	228,772	231,635
NOI attributable to noncontrolling interests in consolidated subsidiaries	(14,766)	(16,886)	(51,100)	(50,221)
NOI at share	297,089	255,271	870,293	754,946
Non-cash adjustments for straight-line rents, amortization of acquired below-market leases, net and other	(1,419)	1,922	(8,824)	1,570
NOI at share - cash basis	$ 295,670	$ 257,193	$ 861,469	$ 756,516