Segment Information (Schedule of NOI by Segment) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Segment Information
Total revenues	$ 443,255	$ 450,995	$ 1,329,896	$ 1,369,277
Operating expenses	(236,149)	(233,737)	(691,753)	(685,233)
NOI - consolidated	207,106	217,258	638,143	684,044
Deduct: NOI attributable to noncontrolling interests in consolidated subsidiaries	(8,907)	(8,363)	(29,316)	(38,869)
Add: NOI from partially owned entities	67,292	72,100	205,959	210,942
NOI at share	265,491	280,995	814,786	856,117
Non-cash adjustments for straight-line rents, amortization of acquired below-market leases, net, and other	6,807	(2,980)	4,715	(3,498)
NOI at share - cash basis	272,298	278,015	819,501	852,619
New York
Segment Information
Total revenues	362,483	364,768	1,088,295	1,091,053
Operating expenses	(194,927)	(186,147)	(572,152)	(550,878)
NOI - consolidated	167,556	178,621	516,143	540,175
Deduct: NOI attributable to noncontrolling interests in consolidated subsidiaries	(2,523)	(2,197)	(9,255)	(12,224)
Add: NOI from partially owned entities	64,555	69,210	197,982	202,043
NOI at share	229,588	245,634	704,870	729,994
Non-cash adjustments for straight-line rents, amortization of acquired below-market leases, net, and other	3,873	(4,790)	(2,781)	(6,554)
NOI at share - cash basis	233,461	240,844	702,089	723,440
Other
Segment Information
Total revenues	80,772	86,227	241,601	278,224
Operating expenses	(41,222)	(47,590)	(119,601)	(134,355)
NOI - consolidated	39,550	38,637	122,000	143,869
Deduct: NOI attributable to noncontrolling interests in consolidated subsidiaries	(6,384)	(6,166)	(20,061)	(26,645)
Add: NOI from partially owned entities	2,737	2,890	7,977	8,899
NOI at share	35,903	35,361	109,916	126,123
Non-cash adjustments for straight-line rents, amortization of acquired below-market leases, net, and other	2,934	1,810	7,496	3,056
NOI at share - cash basis	$ 38,837	$ 37,171	$ 117,412	$ 129,179