Consolidated Statements of Cash Flows (LP) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Cash Flows from Operating Activities:
Net income (loss)	$ 207,553	$ (461,845)	$ 3,334,262
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization (including amortization of deferred financing costs)	432,594	417,942	438,933
Distributions of income from partially owned entities	214,521	175,246	116,826
Equity in net (income) loss of partially owned entities	(130,517)	329,112	(78,865)
Net gains on disposition of wholly owned and partially owned assets	(50,770)	(381,320)	(845,499)
Stock-based compensation expense	38,329	48,677	53,908
Defeasance cost in connection with refinancing of mortgage payable	23,729	0	0
Amortization of below-market leases, net	(9,249)	(16,878)	(19,830)
Straight-lining of rents	8,644	24,404	9,679
Real estate impairment losses	7,880	236,286	26,705
Write-off of lease receivables deemed uncollectible	7,695	63,204	17,237
Return of capital from real estate fund investments	5,104	0	0
Net realized and unrealized (income) loss on real estate fund investments	(4,621)	226,107	106,109
Non-cash (gain on extinguishment of 608 Fifth Avenue lease liability) impairment loss on 608 Fifth Avenue right-of-use asset	0	(70,260)	75,220
Credit losses on loans receivable	0	13,369	0
Decrease in fair value of marketable securities	0	4,938	5,533
Net gain on transfer to Fifth Avenue and Times Square JV	0	0	(2,571,099)
Prepayment penalty on redemption of senior unsecured notes due 2022	0	0	22,058
Other non-cash adjustments	7,368	6,739	(3,472)
Changes in operating assets and liabilities:
Real estate fund investments	(4,474)	(7,197)	(10,000)
Tenant and other receivables	(187)	(5,330)	(25,988)
Prepaid assets	30,466	(137,452)	7,558
Other assets	(54,716)	(52,832)	(4,302)
Accounts payable and accrued expenses	35,856	14,868	5,940
Other liabilities	(3,399)	(3,538)	1,626
Net cash provided by operating activities	761,806	424,240	662,539
Cash Flows from Investing Activities:
Development costs and construction in progress	(585,940)	(601,920)	(649,056)
Additions to real estate	(149,461)	(155,738)	(233,666)
Proceeds from sale of condominium units at 220 Central Park South	137,404	1,044,260	1,605,356
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)	(123,936)	0	0
Distributions of capital from partially owned entities	106,005	2,389	24,880
Proceeds from sales of real estate	100,024	0	324,201
Investments in partially owned entities	(14,997)	(8,959)	(18,257)
Acquisitions of real estate and other	(3,000)	(1,156)	(69,699)
Proceeds from repayments of loans receivable	1,554	0	1,395
Moynihan Train Hall expenditures	0	(395,051)	(438,935)
Proceeds from sales of marketable securities	0	28,375	168,314
Proceeds from transfer of interest in Fifth Avenue and Times Square JV (net of $35,562 of transaction costs and $10,899 of deconsolidated cash and restricted cash)	0	0	1,248,743
Proceeds from redemption of 640 Fifth Avenue preferred equity	0	0	500,000
Net cash (used in) provided by investing activities	(532,347)	(87,800)	2,463,276
Cash Flows from Financing Activities:
Proceeds from borrowings	3,248,007	1,056,315	1,108,156
Repayments of borrowings	(1,584,243)	(1,067,564)	(2,718,987)
Purchase of marketable securities in connection with defeasance of mortgage payable	(973,729)	0	(407,126)
Dividends paid on common shares / Distributions to Vornado	(406,109)	(827,319)	(503,785)
Redemption of preferred shares / units	(300,000)	0	(893)
Proceeds from the issuance of preferred shares	291,153	291,182	0
Distribution to noncontrolling interests / redeemable security holders and noncontrolling interests in consolidated subsidiaries	(190,876)	(91,514)	(80,194)
Dividends paid on preferred shares/ Distributions to preferred unitholders	(65,880)	(64,271)	(50,131)
Debt issuance costs	(51,184)	(10,901)	(15,588)
Contributions from noncontrolling interests / noncontrolling interests in consolidated subsidiaries	4,052	100,094	17,871
Repurchase of shares (Class A units) related to stock compensation agreements and related tax withholdings and other	(1,567)	(137)	(8,692)
Proceeds received from exercise of employee share options (Vornado stock options) and other	899	5,862	6,903
Moynihan Train Hall reimbursement from Empire State Development	0	395,051	438,935
Prepayment penalty on redemption of senior unsecured notes due 2022	0	0	(22,058)
Net cash provided by (used in) financing activities	(29,477)	(213,202)	(2,235,589)
Net increase (decrease) in cash and cash equivalents and restricted cash	199,982	123,238	890,226
Reconciliation of Cash and Cash Equivalents and Restricted Cash:
Cash and cash equivalents at beginning of period	1,624,482
Restricted cash at beginning of period	105,887
Cash and cash equivalents and restricted cash at beginning of period	1,730,369	1,607,131	716,905
Cash and cash equivalents at end of period	1,760,225	1,624,482
Restricted cash at end of period	170,126	105,887
Cash and cash equivalents and restricted cash at end of period	1,930,351	1,730,369	1,607,131
Supplemental Disclosure of Cash Flow Information:
Cash payments for interest, excluding capitalized interest of $38,320, $40,855 and $67,980	188,587	210,052	283,613
Cash payments for income taxes	9,155	15,105	59,834
Non-Cash Investing and Financing Activities:
Marketable securities transferred in connection with the defeasance of mortgage payable	(973,729)	0	(407,126)
Defeasance of mortgage payable	950,000	0	390,000
Increase in assets and liabilities resulting from the consolidation of One Park Avenue:
Mortgages payable	525,000	0	0
Deferred revenue	18,884	0	0
Accrued capital expenditures included in accounts payable and accrued expenses	291,690	117,641	109,975
Write-off of fully depreciated assets	(123,537)	(189,250)	(122,813)
Reclassification of assets held for sale (included in "other assets")	80,005	0	0
Redeemable Class A unit measurement adjustment	(76,073)	344,043	70,810
Decrease (increase) in accumulated other comprehensive loss due to change in fair value of consolidated interest rate swaps	51,337	(29,972)	(47,885)
Decrease in assets and liabilities resulting from the deconsolidation of Moynihan Train Hall: [Abstract]
Real estate, net	0	(1,291,804)	0
Moynihan Train Hall Obligation	0	(1,291,804)	0
Investments received in exchange for transfer to Fifth Avenue and Times Square JV: [Abstract]
Preferred equity	0	0	2,327,750
Common equity	0	0	1,449,495
Lease liabilities arising from the recognition of right-of-use assets	0	0	526,866
Special dividend/distribution declared and payable on January 15, 2020	0	0	398,292
Recognition of negative basis related to the sale of our investment in 330 Madison Avenue	0	0	60,052
Amounts related to our investment in Pennsylvania Real Estate Investment Trust reclassified from "investments in partially owned entities" and "accumulated other comprehensive loss" to "marketable securities" upon conversion of operating partnership units to common shares	0	0	54,962
One Park Avenue
Increase in assets and liabilities resulting from the consolidation of One Park Avenue:
Real estate	566,013	0	0
Identified intangible assets	139,545	0	0
Moynihan Train Hall
Increase in assets and liabilities resulting from the consolidation of One Park Avenue:
Reclassification of condominium units from "development costs and construction in progress" to "220 Central Park South condominium units ready for sale"	16,014	388,280	1,311,468
Vornado Realty L.P.
Cash Flows from Operating Activities:
Net income (loss)	207,553	(461,845)	3,334,262
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization (including amortization of deferred financing costs)	432,594	417,942	438,933
Distributions of income from partially owned entities	214,521	175,246	116,826
Equity in net (income) loss of partially owned entities	(130,517)	329,112	(78,865)
Net gains on disposition of wholly owned and partially owned assets	(50,770)	(381,320)	(845,499)
Stock-based compensation expense	38,329	48,677	53,908
Defeasance cost in connection with refinancing of mortgage payable	23,729	0	0
Amortization of below-market leases, net	(9,249)	(16,878)	(19,830)
Straight-lining of rents	8,644	24,404	9,679
Real estate impairment losses	7,880	236,286	26,705
Write-off of lease receivables deemed uncollectible	7,695	63,204	17,237
Return of capital from real estate fund investments	5,104	0	0
Net realized and unrealized (income) loss on real estate fund investments	(4,621)	226,107	106,109
Non-cash (gain on extinguishment of 608 Fifth Avenue lease liability) impairment loss on 608 Fifth Avenue right-of-use asset	0	(70,260)	75,220
Credit losses on loans receivable	0	13,369	0
Decrease in fair value of marketable securities	0	4,938	5,533
Net gain on transfer to Fifth Avenue and Times Square JV	0	0	(2,571,099)
Prepayment penalty on redemption of senior unsecured notes due 2022	0	0	22,058
Other non-cash adjustments	7,368	6,739	(3,472)
Changes in operating assets and liabilities:
Real estate fund investments	(4,474)	(7,197)	(10,000)
Tenant and other receivables	(187)	(5,330)	(25,988)
Prepaid assets	30,466	(137,452)	7,558
Other assets	(54,716)	(52,832)	(4,302)
Accounts payable and accrued expenses	35,856	14,868	5,940
Other liabilities	(3,399)	(3,538)	1,626
Net cash provided by operating activities	761,806	424,240	662,539
Cash Flows from Investing Activities:
Development costs and construction in progress	(585,940)	(601,920)	(649,056)
Additions to real estate	(149,461)	(155,738)	(233,666)
Proceeds from sale of condominium units at 220 Central Park South	137,404	1,044,260	1,605,356
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)	(123,936)	0	0
Distributions of capital from partially owned entities	106,005	2,389	24,880
Proceeds from sales of real estate	100,024	0	324,201
Investments in partially owned entities	(14,997)	(8,959)	(18,257)
Acquisitions of real estate and other	(3,000)	(1,156)	(69,699)
Proceeds from repayments of loans receivable	1,554	0	1,395
Moynihan Train Hall expenditures	0	(395,051)	(438,935)
Proceeds from sales of marketable securities	0	28,375	168,314
Proceeds from transfer of interest in Fifth Avenue and Times Square JV (net of $35,562 of transaction costs and $10,899 of deconsolidated cash and restricted cash)	0	0	1,248,743
Proceeds from redemption of 640 Fifth Avenue preferred equity	0	0	500,000
Net cash (used in) provided by investing activities	(532,347)	(87,800)	2,463,276
Cash Flows from Financing Activities:
Proceeds from borrowings	3,248,007	1,056,315	1,108,156
Repayments of borrowings	(1,584,243)	(1,067,564)	(2,718,987)
Purchase of marketable securities in connection with defeasance of mortgage payable	(973,729)	0	(407,126)
Dividends paid on common shares / Distributions to Vornado	(406,109)	(827,319)	(503,785)
Redemption of preferred shares / units	(300,000)	0	(893)
Proceeds from the issuance of preferred shares	291,153	291,182	0
Distribution to noncontrolling interests / redeemable security holders and noncontrolling interests in consolidated subsidiaries	(190,876)	(91,514)	(80,194)
Dividends paid on preferred shares/ Distributions to preferred unitholders	(65,880)	(64,271)	(50,131)
Debt issuance costs	(51,184)	(10,901)	(15,588)
Contributions from noncontrolling interests / noncontrolling interests in consolidated subsidiaries	4,052	100,094	17,871
Repurchase of shares (Class A units) related to stock compensation agreements and related tax withholdings and other	(1,567)	(137)	(8,692)
Proceeds received from exercise of employee share options (Vornado stock options) and other	899	5,862	6,903
Moynihan Train Hall reimbursement from Empire State Development	0	395,051	438,935
Prepayment penalty on redemption of senior unsecured notes due 2022	0	0	(22,058)
Net cash provided by (used in) financing activities	(29,477)	(213,202)	(2,235,589)
Net increase (decrease) in cash and cash equivalents and restricted cash	199,982	123,238	890,226
Reconciliation of Cash and Cash Equivalents and Restricted Cash:
Cash and cash equivalents at beginning of period	1,624,482	1,515,012	570,916
Restricted cash at beginning of period	105,887	92,119	145,989
Cash and cash equivalents and restricted cash at beginning of period	1,730,369	1,607,131	716,905
Cash and cash equivalents at end of period	1,760,225	1,624,482	1,515,012
Restricted cash at end of period	170,126	105,887	92,119
Cash and cash equivalents and restricted cash at end of period	1,930,351	1,730,369	1,607,131
Supplemental Disclosure of Cash Flow Information:
Cash payments for interest, excluding capitalized interest of $38,320, $40,855 and $67,980	188,587	210,052	283,613
Cash payments for income taxes	9,155	15,105	59,834
Non-Cash Investing and Financing Activities:
Marketable securities transferred in connection with the defeasance of mortgage payable	(973,729)	0	(407,126)
Defeasance of mortgage payable	950,000	0	390,000
Increase in assets and liabilities resulting from the consolidation of One Park Avenue:
Mortgages payable	525,000	0	0
Deferred revenue	18,884	0	0
Accrued capital expenditures included in accounts payable and accrued expenses	291,690	117,641	109,975
Write-off of fully depreciated assets	(123,537)	(189,250)	(122,813)
Reclassification of assets held for sale (included in "other assets")	80,005	0	0
Redeemable Class A unit measurement adjustment	(76,073)	344,043	70,810
Decrease (increase) in accumulated other comprehensive loss due to change in fair value of consolidated interest rate swaps	51,337	(29,972)	(47,885)
Decrease in assets and liabilities resulting from the deconsolidation of Moynihan Train Hall: [Abstract]
Real estate, net	0	(1,291,804)	0
Moynihan Train Hall Obligation	0	1,291,804	0
Investments received in exchange for transfer to Fifth Avenue and Times Square JV: [Abstract]
Preferred equity	0	0	2,327,750
Common equity	0	0	1,449,495
Lease liabilities arising from the recognition of right-of-use assets	0	0	526,866
Special dividend/distribution declared and payable on January 15, 2020	0	0	398,292
Recognition of negative basis related to the sale of our investment in 330 Madison Avenue	0	0	60,052
Amounts related to our investment in Pennsylvania Real Estate Investment Trust reclassified from "investments in partially owned entities" and "accumulated other comprehensive loss" to "marketable securities" upon conversion of operating partnership units to common shares	0	0	54,962
Vornado Realty L.P. | One Park Avenue
Increase in assets and liabilities resulting from the consolidation of One Park Avenue:
Real estate	566,013	0	0
Identified intangible assets	139,545	0	0
Vornado Realty L.P. | Moynihan Train Hall
Increase in assets and liabilities resulting from the consolidation of One Park Avenue:
Reclassification of condominium units from "development costs and construction in progress" to "220 Central Park South condominium units ready for sale"	$ 16,014	$ 388,280	$ 1,311,468