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Non-controlling Interests - Additional Information (Detail) (USD $)
 3 Months Ended 0 Months Ended
Mar. 31, 2015
Mar. 05, 2014
Noncontrolling Interest [Line Items]    
Decrease in non-controlling interest due to property sale $ 3,764,000fur_NoncontrollingInterestDecreaseFromPropertySale  
Increase in non-controlling interest due to consolidation of property 16,391,000us-gaap_NoncontrollingInterestIncreaseFromBusinessCombination  
River City [Member]    
Noncontrolling Interest [Line Items]    
Decrease in non-controlling interest due to property sale   3,764,000fur_NoncontrollingInterestDecreaseFromPropertySale
/ us-gaap_BusinessAcquisitionAxis
= fur_RiverCityMember
Norridge [Member]    
Noncontrolling Interest [Line Items]    
Increase in non-controlling interest due to consolidation of property   $ 16,391,000us-gaap_NoncontrollingInterestIncreaseFromBusinessCombination
/ us-gaap_BusinessAcquisitionAxis
= fur_NorridgeMember