Segment Information (Schedule of NOI by Segment) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Segment Information
Total revenues	$ 450,266	$ 472,359	$ 886,641	$ 918,282
Operating expenses	(229,380)	(222,723)	(455,604)	(451,496)
NOI - consolidated	220,886	249,636	431,037	466,786
Deduct: NOI attributable to noncontrolling interests in consolidated subsidiaries	(9,013)	(18,742)	(20,409)	(30,506)
Add: NOI from partially owned entities	68,298	70,745	138,667	138,842
NOI at share	280,171	301,639	549,295	575,122
Non-cash adjustments for straight-line rents, amortization of acquired below-market leases, net, and other	(581)	(5,570)	(2,092)	(518)
NOI at share - cash basis	279,590	296,069	547,203	574,604
New York
Segment Information
Total revenues	367,578	362,471	725,812	726,285
Operating expenses	(188,947)	(176,410)	(377,225)	(364,731)
NOI - consolidated	178,631	186,061	348,587	361,554
Deduct: NOI attributable to noncontrolling interests in consolidated subsidiaries	(2,196)	(5,204)	(6,732)	(10,027)
Add: NOI from partially owned entities	65,718	67,509	133,427	132,833
NOI at share	242,153	248,366	475,282	484,360
Non-cash adjustments for straight-line rents, amortization of acquired below-market leases, net, and other	(4,319)	(6,797)	(6,654)	(1,764)
NOI at share - cash basis	237,834	241,569	468,628	482,596
Other
Segment Information
Total revenues	82,688	109,888	160,829	191,997
Operating expenses	(40,433)	(46,313)	(78,379)	(86,765)
NOI - consolidated	42,255	63,575	82,450	105,232
Deduct: NOI attributable to noncontrolling interests in consolidated subsidiaries	(6,817)	(13,538)	(13,677)	(20,479)
Add: NOI from partially owned entities	2,580	3,236	5,240	6,009
NOI at share	38,018	53,273	74,013	90,762
Non-cash adjustments for straight-line rents, amortization of acquired below-market leases, net, and other	3,738	1,227	4,562	1,246
NOI at share - cash basis	$ 41,756	$ 54,500	$ 78,575	$ 92,008