CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - USD ($)	Total	Common Stock [Member]	Additional Paid in Capital [Member]	Earnings Less than Distributions [Member]	Accumulated Other Comprehensive (Loss) Income [Member]	Noncontrolling Interest [Member] Consolidated Joint Ventures [Member]	Noncontrolling Interest [Member] Consolidated Real Estate Related Funds [Member]	Noncontrolling Interest [Member] Operating Partnership [Member]
Beginning balance at Dec. 31, 2019	$ 4,630,962,000	$ 2,274,000	$ 4,133,184,000	$ (349,557,000)	$ (171,000)	$ 360,778,000	$ 72,396,000	$ 412,058,000
Common stock, shares outstanding at Dec. 31, 2019		227,432,000
Net (loss) income	(19,196,000)			(24,704,000)		9,257,000	(1,450,000)	(2,299,000)
Common shares issued upon redemption of common units		$ 51,000	85,659,000
Common shares issued upon redemption of common units, shares		5,150,000
Redemption of minority interest in operating partnerships								(85,710,000)
Common shares issued under Omnibus share plan, net of shares withheld for taxes	(332,000)	$ 1,000		(333,000)
Common shares issued under Omnibus share plan, net of shares withheld for taxes		48,000
Repurchases of common shares	(120,000,000)	$ (138,000)	(119,862,000)
Repurchases of common shares, shares		(13,813,158)
Dividends and distributions	(89,603,000)			(81,799,000)				(7,804,000)
Contributions from noncontrolling interests	11,555,000					3,500,000	8,055,000
Distributions to noncontrolling interests	(12,717,000)					(12,717,000)
Pro rata share of other comprehensive income (loss) of unconsolidated joint ventures	(13,894,000)				(12,620,000)		16,000	(1,290,000)
Amortization of equity awards	19,386,000		1,318,000					18,068,000
Sale of a 10.0% interest in 1633 Broadway	109,573,000		33,230,000			76,343,000
Reallocation of noncontrolling interest			(13,356,000)					13,356,000
Ending balance at Dec. 31, 2020	4,515,734,000	$ 2,188,000	4,120,173,000	(456,393,000)	(12,791,000)	437,161,000	79,017,000	346,379,000
Common stock, shares outstanding at Dec. 31, 2020		218,817,000
Net (loss) income	2,059,000			(20,354,000)		21,538,000	2,893,000	(2,018,000)
Common shares issued upon redemption of common units		$ 1,000	960,000					(961,000)
Common shares issued upon redemption of common units, shares		59,000
Common shares issued under Omnibus share plan, net of shares withheld for taxes	(235,000)	$ 1,000		(236,000)
Common shares issued under Omnibus share plan, net of shares withheld for taxes		116,000
Dividends and distributions	(67,578,000)			(61,310,000)				(6,268,000)
Contributions from noncontrolling interests	121,000					121,000
Distributions to noncontrolling interests	(30,539,000)					(30,539,000)
Change in value of interest rate swaps	6,857,000				6,237,000			620,000
Pro rata share of other comprehensive income (loss) of unconsolidated joint ventures	9,565,000				8,692,000		15,000	858,000
Amortization of equity awards	18,777,000		1,221,000					17,556,000
Reallocation of noncontrolling interest			55,000					(55,000)
Other	271,000		271,000	(552,000)		552,000
Ending balance at Dec. 31, 2021	$ 4,455,032,000	$ 2,190,000	4,122,680,000	(538,845,000)	2,138,000	428,833,000	81,925,000	356,111,000
Common stock, shares outstanding at Dec. 31, 2021	218,991,795	218,992,000
Net (loss) income	$ (28,197,000)			(36,403,000)		13,981,000	(3,342,000)	(2,433,000)
Common shares issued upon redemption of common units		$ 79,000	128,664,000					(128,743,000)
Common shares issued upon redemption of common units, shares		7,844,000
Common shares issued under Omnibus share plan, net of shares withheld for taxes	(284,000)			(284,000)
Common shares issued under Omnibus share plan, net of shares withheld for taxes		94,000
Repurchases of common shares	(65,000,000)	$ (104,000)	(64,896,000)
Repurchases of common shares, shares		(10,370,610)
Dividends and distributions	(74,155,000)			(68,560,000)				(5,595,000)
Contributions from noncontrolling interests	3,257,000						3,257,000
Distributions to noncontrolling interests	(40,699,000)					(40,699,000)
Change in value of interest rate swaps	31,839,000				29,194,000			2,645,000
Pro rata share of other comprehensive income (loss) of unconsolidated joint ventures	18,485,000				16,964,000			1,521,000
Amortization of equity awards	19,189,000		1,302,000					17,887,000
Consolidation of real estate related fund investments that were previously unconsolidated	91,535,000						91,535,000
Reallocation of noncontrolling interest			(1,589,000)					1,589,000
Other	(236,000)			(239,000)		3,000
Ending balance at Dec. 31, 2022	$ 4,410,766,000	$ 2,165,000	$ 4,186,161,000	$ (644,331,000)	$ 48,296,000	$ 402,118,000	$ 173,375,000	$ 242,982,000
Common stock, shares outstanding at Dec. 31, 2022	216,559,406	216,559,000