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Restricted Share Grants - Additional Information (Detail) (USD $)
7 Months Ended 12 Months Ended 0 Months Ended 12 Months Ended 0 Months Ended
Jul. 31, 2014
Dec. 31, 2013
Sep. 05, 2014
Dec. 31, 2014
May 28, 2013
Feb. 28, 2013
May 31, 2013
May 21, 2013
Jan. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Non-cash compensation expense $ 1,450,000us-gaap_ShareBasedCompensation $ 897,000us-gaap_ShareBasedCompensation              
Restricted Shares [Member]                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Non-cash compensation expense $ 1,450,000us-gaap_ShareBasedCompensation
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
$ 899,000us-gaap_ShareBasedCompensation
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
             
Shares issued     10,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
595,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
         
Shares outstanding       595,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
         
Shares vested       5,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
         
Long Term Incentive 2007 Plan [Member]                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Number of shares authorized for issuance             1,000,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
/ us-gaap_PlanNameAxis
= fur_LongTermIncentiveTwoThousandAndSevenPlanMember
   
Initial restricted shares issued         500,000us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardGross
/ us-gaap_PlanNameAxis
= fur_LongTermIncentiveTwoThousandAndSevenPlanMember
100,000us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardGross
/ us-gaap_PlanNameAxis
= fur_LongTermIncentiveTwoThousandAndSevenPlanMember
     
Long Term Incentive 2007 Plan [Member] | Restricted Shares [Member]                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Number of shares authorized for issuance               1,000,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
/ us-gaap_PlanNameAxis
= fur_LongTermIncentiveTwoThousandAndSevenPlanMember
600,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
/ us-gaap_PlanNameAxis
= fur_LongTermIncentiveTwoThousandAndSevenPlanMember
Increase in shares issuable by shareholders                 500,000fur_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesToBeAuthorizedByShareholders
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
/ us-gaap_PlanNameAxis
= fur_LongTermIncentiveTwoThousandAndSevenPlanMember