Segment Information (Summary of NOI by Segment) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Segment Information
Total revenues	$ 453,494	$ 378,941	$ 895,624	$ 758,918
Operating expenses	(222,309)	(190,920)	(438,838)	(381,899)
NOI - consolidated	231,185	188,021	456,786	377,019
Deduct: NOI attributable to noncontrolling interests in consolidated subsidiaries	(16,299)	(15,689)	(36,334)	(33,335)
Add: NOI from partially owned entities	74,060	77,235	152,752	155,991
NOI at share	288,946	249,567	573,204	499,675
Non-cash adjustments for straight-line rents, amortization of acquired below-market leases, net, and other	(4,275)	846	(7,405)	(352)
NOI at share - cash basis	284,671	250,413	565,799	499,323
New York
Segment Information
Total revenues	364,162	301,144	722,710	605,115
Operating expenses	(176,572)	(156,033)	(354,107)	(317,018)
NOI - consolidated	187,590	145,111	368,603	288,097
Deduct: NOI attributable to noncontrolling interests in consolidated subsidiaries	(10,707)	(8,473)	(24,017)	(17,094)
Add: NOI from partially owned entities	71,209	74,400	147,173	151,173
NOI at share	248,092	211,038	491,759	422,176
Non-cash adjustments for straight-line rents, amortization of acquired below-market leases, net, and other	(6,189)	541	(10,164)	(432)
NOI at share - cash basis	241,903	211,579	481,595	421,744
Other
Segment Information
Total revenues	89,332	77,797	172,914	153,803
Operating expenses	(45,737)	(34,887)	(84,731)	(64,881)
NOI - consolidated	43,595	42,910	88,183	88,922
Deduct: NOI attributable to noncontrolling interests in consolidated subsidiaries	(5,592)	(7,216)	(12,317)	(16,241)
Add: NOI from partially owned entities	2,851	2,835	5,579	4,818
NOI at share	40,854	38,529	81,445	77,499
Non-cash adjustments for straight-line rents, amortization of acquired below-market leases, net, and other	1,914	305	2,759	80
NOI at share - cash basis	$ 42,768	$ 38,834	$ 84,204	$ 77,579