CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($)	9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024
Cash Flows from Operating Activities:
Net (loss) income	$ (56,008,000)	$ 9,668,000
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Depreciation and amortization	176,707,000	182,920,000
Straight-lining of rental revenue	3,426,000	(5,300,000)
Amortization of stock-based compensation expense	14,261,000	15,635,000
Amortization of deferred financing costs	11,041,000	7,622,000
(Income) loss from unconsolidated joint ventures	(2,620,000)	3,098,000
Distributions of earnings from unconsolidated joint ventures	388,000	372,000
Unrealized losses on real estate related fund investments	0	775,000
Loss (income) from unconsolidated real estate related funds	79,000	(199,000)
Distributions of earnings from unconsolidated real estate related funds	155,000	141,000
Amortization of above and below-market leases, net	(3,980,000)	(4,351,000)
Non-cash gain on extinguishment of IPO related tax liability	0	(15,437,000)
Other non-cash adjustments	(917,000)	180,000
Changes in operating assets and liabilities:
Accounts and other receivables	(8,353,000)	(609,000)
Deferred charges	(35,029,000)	(7,163,000)
Other assets	(25,916,000)	(26,340,000)
Accounts payable and accrued expenses	12,903,000	9,079,000
Other liabilities	(3,097,000)	6,479,000
Net cash provided by operating activities	83,040,000	176,570,000
Cash Flows from Investing Activities:
Additions to real estate	(115,840,000)	(85,231,000)
Distribution of capital from an unconsolidated joint venture	12,089,000	1,792,000
Contributions of capital to unconsolidated joint ventures	(5,414,000)	(1,904,000)
Proceeds from repayment of a mezzanine loan investment	0	10,000,000
Net cash used in investing activities	(109,165,000)	(75,343,000)
Cash Flows from Financing Activities:
Proceeds from notes and mortgages payable	900,000,000	850,000,000
Repayment of notes and mortgages payable	(860,000,000)	(975,000,000)
Debt issuance costs	(14,411,000)	(10,649,000)
Contributions from noncontrolling interests in consolidated joint ventures	11,723,000	62,220,000
Distributions to noncontrolling interests in consolidated joint ventures	(5,710,000)	(2,444,000)
Repurchase of shares related to stock compensation agreements and related tax withholdings	(140,000)	(178,000)
Contributions from noncontrolling interests in consolidated real estate related funds	0	889,000
Distributions to noncontrolling interests in consolidated real estate related funds	0	(18,311,000)
Dividends paid to common stockholders	0	(22,826,000)
Distributions paid to common unitholders	0	(2,292,000)
Net cash provided by (used in) financing activities	125,035,000	(118,591,000)
Net increase (decrease) in cash and cash equivalents and restricted cash	98,910,000	(17,364,000)
Cash and cash equivalents and restricted cash at beginning of period	555,447,000	509,599,000
Cash and cash equivalents and restricted cash at end of period	654,357,000	492,235,000
Reconciliation of Cash and Cash Equivalents and Restricted Cash:
Cash and cash equivalents at beginning of period	375,056,000	428,208,000
Restricted cash at beginning of period	180,391,000	81,391,000
Cash and cash equivalents and restricted cash at beginning of period	555,447,000	509,599,000
Cash and cash equivalents at end of period	330,207,000	318,725,000
Restricted cash at end of period	324,150,000	173,510,000
Cash and cash equivalents and restricted cash at end of period	654,357,000	492,235,000
Supplemental Disclosure of Cash Flow Information:
Cash payments for interest	118,822,000	116,298,000
Cash payments for income taxes, net of refunds	557,000	1,036,000
Non-Cash Transactions:
Common shares issued upon redemption of common units	61,490,000	2,073,000
Write-off of fully amortized and/or depreciated assets	57,491,000	35,875,000
Mezzanine loan receivable in connection with the sale of interest	40,545,000
Additions to real estate included in accounts payable and accrued expenses	22,868,000	9,240,000
Change in value of interest rate swaps and interest rate caps	(819,000)	(14,241,000)
900 Third Avenue [Member]
Cash Flows from Financing Activities:
Proceeds from the sale of interest	83,307,000	0
Reconciliation of Cash and Cash Equivalents and Restricted Cash:
Restricted cash at beginning of period	9,450,000
One Front Street [Member]
Cash Flows from Financing Activities:
Proceeds from the sale of interest	10,266,000	0
Non-Cash Transactions:
Mezzanine loan receivable in connection with the sale of interest	$ 40,545,000	$ 0