Variable Interest Entities (Details)	Jun. 30, 2012 Asset Venture Investment
Variable Interest Entities (Textual) [Abstract]
Identified Investments	12
Investments with no equity at risk	9
Unconsolidated joint venture	12
No. of assets identified as variable interests in a VIE	7

Number of assets identified as variable interests in variable interest entities.

No definition available.

Name:	fur_NumberOfAssetsIdentifiedAsVariableInterestsInVariableInterestEntities
Namespace Prefix:	fur_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant