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           Commitments And Contingencies (Roseland Transaction Modifications) (Narrative) (Details) (USD $) 
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        3 Months Ended | 9 Months Ended | 0 Months Ended | 3 Months Ended | 9 Months Ended | 9 Months Ended | 12 Months Ended | 0 Months Ended | 3 Months Ended | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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           Sep. 30, 2014 
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           Sep. 30, 2013 
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           Sep. 30, 2014 
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           Sep. 30, 2013 
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           Dec. 31, 2013 
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           Sep. 30, 2014
 
          Minimum [Member] 
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           Sep. 17, 2014
 
          Roseland Partners, L.L.C. [Member] 
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           Mar. 21, 2014
 
          Roseland Partners, L.L.C. [Member] 
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           Jan. 25, 2014
 
          Roseland Partners, L.L.C. [Member] 
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           Sep. 30, 2014
 
          Roseland Partners, L.L.C. [Member] 
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           Sep. 30, 2014
 
          Roseland Partners, L.L.C. [Member] 
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           Oct. 23, 2012
 
          Roseland Partners, L.L.C. [Member] 
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           Sep. 30, 2014
 
          Roseland Partners, L.L.C. [Member]
 
          Messr Goldberg [Member] 
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           Sep. 30, 2014
 
          Roseland Partners, L.L.C. [Member]
 
          Messr Klatt And Messr Goldberg [Member] 
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           Sep. 30, 2014
 
          Roseland Partners, L.L.C. [Member]
 
          Messr Tycher [Member]
 
          Minimum [Member] 
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           Oct. 23, 2015
 
          Roseland Partners, L.L.C. [Member]
 
          Scenario, Forecast [Member]
 
          Messr Goldberg [Member]
 
          item 
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           Apr. 24, 2015
 
          Roseland Partners, L.L.C. [Member]
 
          Scenario, Forecast [Member]
 
          Messr Klatt And Messr Goldberg [Member] 
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           Oct. 28, 2014
 
          Roseland Partners, L.L.C. [Member]
 
          Scenario, Forecast [Member]
 
          Messr Klatt And Messr Goldberg [Member] 
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           Sep. 30, 2014
 
          Roseland Partners, L.L.C. [Member]
 
          Obtaining Of Tax Credits/Grants [Member] 
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           Oct. 23, 2012
 
          Roseland Partners, L.L.C. [Member]
 
          Obtaining Of Tax Credits/Grants [Member] 
         | 
        
           Sep. 30, 2014
 
          Roseland Partners, L.L.C. [Member]
 
          Obtaining Of Tax Credits/Grants [Member]
 
          Scenario, Forecast [Member] 
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| Commitments And Contingencies [Line Items] | |||||||||||||||||||||||||
| Consulting payment | $ 400,000 | ||||||||||||||||||||||||
| Consulting period | 1 year | ||||||||||||||||||||||||
| Period for continuation of health insurance | 1 year | ||||||||||||||||||||||||
| Number of installments | 4 | ||||||||||||||||||||||||
| Severance benefits | 11,000,000 | 500,000 | 750,000 | ||||||||||||||||||||||
| Percentage of interest in venture | [1] | [1] | 7.50% | 50.00% | |||||||||||||||||||||
| Earn out paid | 5,228,000 | 2,755,000 | 1,400,000 | 1,400,000 | 2,800,000 | 1,000,000 | |||||||||||||||||||
| Business acquisition, contingent cash payment | 15,600,000 | 3,000,000 | 3,000,000 | ||||||||||||||||||||||
| General and administrative | 12,665,000 | 12,151,000 | 49,219,000 | 37,235,000 | 1,100,000 | 1,100,000 | |||||||||||||||||||
| Accounts payable, accrued expenses and other liabilities | $ 126,580,000 | $ 126,580,000 | $ 121,286,000 | $ 2,600,000 | $ 2,600,000 | ||||||||||||||||||||
          
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