CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (UNAUDITED) - USD ($) $ in Thousands	Total	900 Third Avenue [Member]	One Front Street [Member]	Common Stock [Member]	Additional Paid in Capital [Member]	Additional Paid in Capital [Member] 900 Third Avenue [Member]	Additional Paid in Capital [Member] One Front Street [Member]	Earnings Less than Distributions [Member]	Accumulated Other Comprehensive (Loss) Income [Member]	Noncontrolling Interest [Member] Consolidated Joint Ventures [Member]	Noncontrolling Interest [Member] Consolidated Joint Ventures [Member] 900 Third Avenue [Member]	Noncontrolling Interest [Member] Consolidated Joint Ventures [Member] One Front Street [Member]	Noncontrolling Interest [Member] Consolidated Real Estate Related Funds [Member]	Noncontrolling Interest [Member] Operating Partnership [Member]
Beginning balance at Dec. 31, 2023	$ 4,014,888			$ 2,173	$ 4,133,801			$ (943,935)	$ 11,246	$ 413,925			$ 110,589	$ 287,089
Common stock, shares outstanding at Dec. 31, 2023				217,366,000
Net (loss) income	13,871							2,046		11,475			173	177
Common shares issued upon redemption of common units					1,117									(1,117)
Common shares issued upon redemption of common units, shares				76,000
Common shares issued under Omnibus share plan, net of shares withheld for taxes	(178)							(178)
Common shares issued under Omnibus share plan, net of shares withheld for taxes, shares				13,000
Dividends and distributions	(16,758)							(15,218)						(1,540)
Contributions from noncontrolling interests	63,109									62,220			889
Distributions to noncontrolling interests	(19,948)									(1,637)			(18,311)
Change in value of interest rate swaps and interest rate caps	(10,655)								(9,759)					(896)
Pro rata share of other comprehensive income (loss) of unconsolidated joint ventures	72								66					6
Amortization of equity awards	11,262				509									10,753
Reallocation of noncontrolling interest					45									(45)
Ending balance at Jun. 30, 2024	4,055,663			$ 2,173	4,135,472			(957,285)	1,553	485,983			93,340	294,427
Common stock, shares outstanding at Jun. 30, 2024				217,455,000
Beginning balance at Mar. 31, 2024	4,078,661			$ 2,173	4,131,652			(941,855)	7,080	480,542			103,886	295,183
Common stock, shares outstanding at Mar. 31, 2024				217,329,000
Net (loss) income	(2,860)							(7,819)		6,269			(589)	(721)
Common shares issued upon redemption of common units					1,117									(1,117)
Common shares issued upon redemption of common units, shares				76,000
Common shares issued under Omnibus share plan, net of shares withheld for taxes, shares				50,000
Dividends and distributions	(8,382)							(7,611)						(771)
Distributions to noncontrolling interests	(10,785)									(828)			(9,957)
Change in value of interest rate swaps and interest rate caps	(5,968)								(5,462)					(506)
Pro rata share of other comprehensive income (loss) of unconsolidated joint ventures	(71)								(65)					(6)
Amortization of equity awards	5,068				240									4,828
Reallocation of noncontrolling interest					2,463									(2,463)
Ending balance at Jun. 30, 2024	4,055,663			$ 2,173	4,135,472			(957,285)	1,553	485,983			93,340	294,427
Common stock, shares outstanding at Jun. 30, 2024				217,455,000
Beginning balance at Dec. 31, 2024	$ 4,009,497			$ 2,175	4,144,301			(1,005,627)	428	495,340			82,875	290,005
Common stock, shares outstanding at Dec. 31, 2024	217,527,797			217,528,000
Net (loss) income	$ (25,726)							(29,811)		4,816			1,868	(2,599)
Common shares issued upon redemption of common units				$ 28	39,625									(39,653)
Common shares issued upon redemption of common units, shares				2,768,000
Common shares issued under Omnibus share plan, net of shares withheld for taxes	(140)							(140)
Common shares issued under Omnibus share plan, net of shares withheld for taxes, shares				15,000
Contributions from noncontrolling interests	8,376									8,376
Distributions to noncontrolling interests	(3,770)									(3,770)
Change in value of interest rate swaps and interest rate caps	(474)								(437)					(37)
Pro rata share of other comprehensive income (loss) of unconsolidated joint ventures	(0)
Amortization of equity awards	11,612				351									11,261
Sale of a interest		$ 92,757	$ 10,266			$ (71,912)	$ (63,430)				$ 164,669	$ 73,696
Reallocation of noncontrolling interest					12,891									(12,891)
Ending balance at Jun. 30, 2025	$ 4,102,398			$ 2,203	4,061,826			(1,035,578)	(9)	743,127			84,743	246,086
Common stock, shares outstanding at Jun. 30, 2025	220,311,416			220,311,000
Beginning balance at Mar. 31, 2025	$ 4,100,931			$ 2,192	4,100,336			(1,015,793)	416	664,249			84,644	264,887
Common stock, shares outstanding at Mar. 31, 2025				219,225,000
Net (loss) income	(20,409)							(19,785)		971			99	(1,694)
Common shares issued upon redemption of common units				$ 11	14,592									(14,603)
Common shares issued upon redemption of common units, shares				1,035,000
Common shares issued under Omnibus share plan, net of shares withheld for taxes, shares				51,000
Contributions from noncontrolling interests	6,126									6,126
Distributions to noncontrolling interests	(1,915)									(1,915)
Change in value of interest rate swaps and interest rate caps	(461)								(425)					(36)
Pro rata share of other comprehensive income (loss) of unconsolidated joint ventures	(0)
Amortization of equity awards	7,860				154									7,706
Sale of a interest			$ 10,266				$ (63,430)					$ 73,696
Reallocation of noncontrolling interest					10,174									(10,174)
Ending balance at Jun. 30, 2025	$ 4,102,398			$ 2,203	$ 4,061,826			$ (1,035,578)	$ (9)	$ 743,127			$ 84,743	$ 246,086
Common stock, shares outstanding at Jun. 30, 2025	220,311,416			220,311,000