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Discontinued Operations (Details) - USD ($)
Jun. 30, 2015
May. 31, 2015
Dec. 31, 2014
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member]      
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]      
Disposal Group, Including Discontinued Operation, Consideration   $ 0  
Discontinued Operations, Held-for-sale [Member]      
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]      
Disposal Group, Including Discontinued Operation, Assets $ 0    
Disposal Group, Including Discontinued Operation, Other Assets, Current     $ 5,591,000
Disposal Group, Including Discontinued Operation, Other Assets, Noncurrent     $ 16,409,000