Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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New Valley LLC (Investment in Real Estate Ventures) (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020 USD ($) venture	Sep. 30, 2019 USD ($)	Sep. 30, 2020 USD ($) venture	Sep. 30, 2019 USD ($)	Dec. 31, 2019 USD ($) venture	Dec. 31, 2018
Schedule of Investments [Line Items]
Investments in real estate ventures	$ 102,458		$ 102,458		$ 131,556
Contributions to real estate ventures			6,239	$ 36,269
Distributions from real estate ventures, distributions of earnings			1,919	3,637
Distributions from investments in real estate ventures			11,606	30,934
Equity in (losses) earnings from real estate ventures	(8,536)	$ 8,050	(27,301)	12,002
Other current liabilities	194,028		194,028		189,317
Identifiable assets	1,442,978		1,442,978		1,505,089
New Valley LLC
Schedule of Investments [Line Items]
Investments in real estate ventures	102,458		102,458		131,556
Contributions to real estate ventures			6,239	36,269
Distributions from real estate ventures			13,525	34,571
Equity in (losses) earnings from real estate ventures	(8,536)	8,050	(27,301)	12,002
Total maximum exposure to loss	116,033		116,033
Interest costs capitalized	932	1,703	3,188	4,706
New Valley LLC \| Condominium and Mixed Use Development
Schedule of Investments [Line Items]
Investments in real estate ventures	77,655		77,655		106,920
Contributions to real estate ventures			5,345	35,760
Distributions from real estate ventures			12,795	4,659
Equity in (losses) earnings from real estate ventures	(7,453)	6,699	(25,192)	1,107
Total maximum exposure to loss	77,655		77,655
New Valley LLC \| Condominium and Mixed Use Development \| New York City SMSA
Schedule of Investments [Line Items]
Investments in real estate ventures	36,252		36,252		51,078
Contributions to real estate ventures			1,169	21,760
Distributions from real estate ventures			1,735	3,380
Equity in (losses) earnings from real estate ventures	(6,835)	2,099	(15,286)	(1,127)
Impairment of long-term investments	10,401		10,401
Total maximum exposure to loss	$ 36,252		$ 36,252
New Valley LLC \| Condominium and Mixed Use Development \| New York City SMSA \| Minimum
Schedule of Investments [Line Items]
Range of ownership	3.10%		3.10%
New Valley LLC \| Condominium and Mixed Use Development \| New York City SMSA \| Maximum
Schedule of Investments [Line Items]
Range of ownership	49.50%		49.50%
New Valley LLC \| Condominium and Mixed Use Development \| All other U.S. areas
Schedule of Investments [Line Items]
Investments in real estate ventures	$ 41,403		$ 41,403		55,842
Contributions to real estate ventures			4,176	14,000
Distributions from real estate ventures			11,060	1,279
Equity in (losses) earnings from real estate ventures	(618)	4,600	(9,906)	2,234
Total maximum exposure to loss	$ 41,403		$ 41,403
New Valley LLC \| Condominium and Mixed Use Development \| All other U.S. areas \| Minimum
Schedule of Investments [Line Items]
Range of ownership	15.00%		15.00%
New Valley LLC \| Condominium and Mixed Use Development \| All other U.S. areas \| Maximum
Schedule of Investments [Line Items]
Range of ownership	77.80%		77.80%
New Valley LLC \| Apartment Buildings
Schedule of Investments [Line Items]
Contributions to real estate ventures			$ 76	0
Distributions from real estate ventures			0	79
Equity in (losses) earnings from real estate ventures	$ (208)	76	(284)	79
New Valley LLC \| Apartment Buildings \| All other U.S. areas
Schedule of Investments [Line Items]
Contributions to real estate ventures			76	0
Distributions from real estate ventures			0	79
Equity in (losses) earnings from real estate ventures	(208)	76	(284)	79
New Valley LLC \| Hotels
Schedule of Investments [Line Items]
Investments in real estate ventures	4,659		4,659		4,623
Contributions to real estate ventures			294	172
Distributions from real estate ventures			0	21,572
Equity in (losses) earnings from real estate ventures	(962)	332	(2,162)	8,202
Total maximum exposure to loss	4,659		4,659
New Valley LLC \| Hotels \| New York City SMSA
Schedule of Investments [Line Items]
Investments in real estate ventures	2,892		2,892		2,462
Contributions to real estate ventures			294	172
Distributions from real estate ventures			0	21,572
Equity in (losses) earnings from real estate ventures	(1,119)	(102)	(1,768)	8,132
Other current liabilities	1,302		1,302
Total maximum exposure to loss	$ 2,892		$ 2,892
New Valley LLC \| Hotels \| New York City SMSA \| Minimum
Schedule of Investments [Line Items]
Range of ownership	1.00%		1.00%
New Valley LLC \| Hotels \| New York City SMSA \| Maximum
Schedule of Investments [Line Items]
Range of ownership	18.40%		18.40%
New Valley LLC \| Hotels \| International
Schedule of Investments [Line Items]
Range of ownership	49.00%		49.00%
Investments in real estate ventures	$ 1,767		$ 1,767		2,161
Equity in (losses) earnings from real estate ventures	157	434	(394)	70
Total maximum exposure to loss	1,767		1,767
New Valley LLC \| Commercial
Schedule of Investments [Line Items]
Investments in real estate ventures	9,258		9,258		9,486
Distributions from real estate ventures			704	173
Equity in (losses) earnings from real estate ventures	264	(3)	476	631
Total maximum exposure to loss	$ 9,258		$ 9,258
New Valley LLC \| Commercial \| New York City SMSA
Schedule of Investments [Line Items]
Range of ownership	49.00%		49.00%
Investments in real estate ventures	$ 2,271		$ 2,271		1,852
Distributions from real estate ventures			591	13
Equity in (losses) earnings from real estate ventures	783	(149)	1,010	114
Total maximum exposure to loss	$ 2,271		$ 2,271
New Valley LLC \| Commercial \| All other U.S. areas
Schedule of Investments [Line Items]
Range of ownership	1.60%		1.60%
Investments in real estate ventures	$ 6,987		$ 6,987		7,634
Distributions from real estate ventures			113	160
Equity in (losses) earnings from real estate ventures	(519)	146	(534)	517
Total maximum exposure to loss	6,987		6,987
New Valley LLC \| Other
Schedule of Investments [Line Items]
Investments in real estate ventures	10,886		10,886		$ 10,527
Contributions to real estate ventures			524	337
Distributions from real estate ventures			26	8,088
Equity in (losses) earnings from real estate ventures	(177)	$ 946	(139)	1,983
Total maximum exposure to loss	$ 24,461		$ 24,461
New Valley LLC \| Other \| Minimum
Schedule of Investments [Line Items]
Range of ownership	15.00%		15.00%
New Valley LLC \| Other \| Maximum
Schedule of Investments [Line Items]
Range of ownership	49.00%		49.00%
Douglas Elliman Realty, LLC
Schedule of Investments [Line Items]
Proceeds from commissions received			$ 8,829	15,394
Variable Interest Entity, Primary Beneficiary
Schedule of Investments [Line Items]
Distributions from real estate ventures, distributions of earnings				$ 20,788
Sale of ownership interest in real estate				80.00%
Recognized equity in earnings from sale				$ 10,328
Variable Interest Entity, Primary Beneficiary \| New Valley LLC
Schedule of Investments [Line Items]
Range of ownership		1.00%		1.00%		5.20%
Number of real estate ventures \| venture	2		2		2
Identifiable assets	$ 0		$ 0		$ 897