Segment Information (Net Income to NOI Reconciliation) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Segment Reporting [Abstract]
Net income	$ 11,198	$ 53,375
Depreciation and amortization expense	106,565	117,443
General and administrative expense	41,595	41,216
Transaction related costs and other	658	1,005
Income from partially owned entities	(16,666)	(33,714)
Loss (income) from real estate fund investments	19	(5,674)
Interest and other investment income, net	(9,603)	(1,018)
Interest and debt expense	86,237	52,109
Net gains on disposition of wholly owned and partially owned assets	(7,520)	(6,552)
Income tax expense	4,667	7,411
NOI from partially owned entities	68,097	78,692
NOI attributable to noncontrolling interests in consolidated subsidiaries	(11,764)	(20,035)
NOI at share	273,483	284,258
Non-cash adjustments for straight-line rents, amortization of acquired below-market leases, net and other	5,052	(3,130)
NOI at share - cash basis	$ 278,535	$ 281,128