New Valley LLC (Guarantees and Commitments) (Details) - New Valley LLC $ in Thousands	Dec. 31, 2016 USD ($)
One Project \| Payment Guarantee
Schedule of Investments [Line Items]
Maximum exposure on guarantees	$ 6,000
Three Projects
Schedule of Investments [Line Items]
Maximum exposure on guarantees	$ 5,400

Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=6851643&loc=d3e12069-110248

Name:	us-gaap_GuaranteeObligationsMaximumExposure
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant