Consolidated Statements of Cash Flows (VNO) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Cash Flows from Operating Activities:
Net (loss) income	$ (382,612)	$ 207,553	$ (461,845)
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Depreciation and amortization (including amortization of deferred financing costs)	526,306	432,594	417,942
Equity in net loss (income) of partially owned entities	461,351	(130,517)	329,112
Distributions of income from partially owned entities	184,501	214,521	175,246
Net gains on disposition of wholly owned and partially owned assets	(100,625)	(50,770)	(381,320)
Straight-lining of rents	(46,177)	8,644	24,404
Stock-based compensation expense	29,249	38,329	48,677
Real estate impairment losses	19,098	7,880	236,286
Change in deferred tax liability	14,005	11,243	(96)
Amortization of below-market leases, net	(5,178)	(9,249)	(16,878)
Return of capital from real estate fund investments	5,141	5,104	0
Net realized and unrealized loss (income) on real estate fund investments	2,589	(4,621)	226,107
Write-off of lease receivables deemed uncollectible	872	7,695	63,204
Defeasance cost in connection with refinancing of mortgage payable	0	23,729	0
Non-cash gain on extinguishment of 608 Fifth Avenue lease liability	0	0	(70,260)
Credit losses on loans receivable	0	0	13,369
Decrease in fair value of marketable securities	0	0	4,938
Other non-cash adjustments	3,090	(3,875)	6,835
Changes in operating assets and liabilities:
Real estate fund investments	0	(4,474)	(7,197)
Tenant and other receivables	(4,437)	(187)	(5,330)
Prepaid assets	104,186	30,466	(137,452)
Other assets	(34,615)	(54,716)	(52,832)
Accounts payable and accrued expenses	5,718	35,856	14,868
Other liabilities	16,482	(3,399)	(3,538)
Net cash provided by operating activities	798,944	761,806	424,240
Cash Flows from Investing Activities:
Purchase of U.S. Treasury bills	(1,066,096)	0	0
Development costs and construction in progress	(737,999)	(585,940)	(601,920)
Proceeds from maturities of U.S. Treasury bills	597,499	0	0
Proceeds from sales of real estate	373,264	100,024	0
Additions to real estate	(159,796)	(149,461)	(155,738)
Proceeds from sale of condominium units and ancillary amenities at 220 Central Park South	88,019	137,404	1,044,260
Distributions of capital from partially owned entities	34,417	106,005	2,389
Investments in partially owned entities	(33,172)	(14,997)	(8,959)
Acquisitions of real estate and other	(3,000)	(3,000)	(1,156)
Acquisition of additional 45.0% ownership interest in One Park Avenue (inclusive of $5,806 of prorations and net working capital and net of $39,370 of cash and restricted cash balances consolidated upon acquisition)	0	(123,936)	0
Proceeds from repayments of loan receivables	0	1,554	0
Moynihan Train Hall expenditures	0	0	(395,051)
Proceeds from sales of marketable securities	0	0	28,375
Net cash used in investing activities	(906,864)	(532,347)	(87,800)
Cash Flows from Financing Activities:
Repayments of borrowings	(1,251,373)	(1,584,243)	(1,067,564)
Proceeds from borrowings	1,029,773	3,248,007	1,056,315
Dividends paid on common shares / Distributions to Vornado	(406,562)	(406,109)	(827,319)
Distribution to noncontrolling interests / redeemable security holders and noncontrolling interests in consolidated subsidiaries	(84,699)	(190,876)	(91,514)
Dividends paid on preferred shares / Distributions to preferred unitholders	(62,116)	(65,880)	(64,271)
Debt issuance costs	(32,706)	(51,184)	(10,901)
Contributions from noncontrolling interests / noncontrolling interests in consolidated subsidiaries	5,609	4,052	100,094
Proceeds received from exercise of employee share options (Vornado stock options) and other	885	899	5,862
Repurchase of shares / Class A units related to stock compensation agreements and related tax withholdings and other	(85)	(1,567)	(137)
Purchase of marketable securities in connection with defeasance of mortgage payable	0	(973,729)	0
Redemption of preferred shares / units	0	(300,000)	0
Proceeds from the issuance of preferred shares / units	0	291,153	291,182
Moynihan Train Hall reimbursement from Empire State Development	0	0	395,051
Net cash used in financing activities	(801,274)	(29,477)	(213,202)
Net (decrease) increase in cash and cash equivalents and restricted cash	(909,194)	199,982	123,238
Cash and cash equivalents and restricted cash at beginning of period	1,930,351	1,730,369	1,607,131
Cash and cash equivalents and restricted cash at end of period	1,021,157	1,930,351	1,730,369
Reconciliation of Cash and Cash Equivalents and Restricted Cash:
Cash and cash equivalents at beginning of period	1,760,225	1,624,482	1,515,012
Restricted cash at beginning of period	170,126	105,887	92,119
Cash and cash equivalents and restricted cash at beginning of period	1,930,351	1,730,369	1,607,131
Cash and cash equivalents at end of period	889,689	1,760,225	1,624,482
Restricted cash at end of period	131,468	170,126	105,887
Cash and cash equivalents and restricted cash at end of period	1,021,157	1,930,351	1,730,369
Supplemental Disclosure of Cash Flow Information:
Cash payments for interest, excluding capitalized interest of $19,085, $38,320 and $40,855	252,371	188,587	210,052
Cash payments for income taxes	7,947	9,155	15,105
Non-Cash Information:
Additional estimated lease liability arising from the recognition of right-of-use asset	350,000	0	0
Write-off of fully depreciated assets	(278,561)	(123,537)	(189,250)
Redeemable Class A unit measurement adjustment	221,145	(76,073)	344,043
Change in fair value of consolidated interest rate swaps and other	190,494	51,337	(29,972)
Accrued capital expenditures included in accounts payable and accrued expenses	104,750	291,690	117,641
Reclassification of condominium units from "development costs and construction in progress" to "220 Central Park South condominium units ready for sale"	32,604	16,014	388,280
Increase in assets and liabilities resulting from the consolidation of One Park Avenue:
Marketable securities transferred in connection with the defeasance of mortgage payable	0	(973,729)	0
Defeasance of mortgage payable	0	950,000	0
Reclassification of assets held for sale (included in "other assets")	0	80,005	0
Decrease in assets and liabilities resulting from the deconsolidation of Moynihan Train Hall:
Real estate, net	0	0	(1,291,804)
Moynihan Train Hall Obligation	0	0	(1,291,804)
One Park Avenue
Increase in assets and liabilities resulting from the consolidation of One Park Avenue:
Real estate	0	566,013	0
Identified intangible assets	0	139,545	0
Mortgages payable	0	525,000	0
Deferred revenue	$ 0	$ 18,884	$ 0