Quarterly report pursuant to Section 13 or 15(d)

Related Party Transactions Schedule of Related Party Transactions, by Related Party (Details)

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Related Party Transactions Schedule of Related Party Transactions, by Related Party (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Dec. 31, 2012
Related Party Transaction [Line Items]      
Gross Asset Management Costs, before Reduction $ 9,061    
Asset Management Costs 4,761 6,743  
Management Fee, Percent 1.50%    
Reduction of Mangement Fees (4,300)    
Costs and Expenses, Related Party 1,934 4,403  
Share-based Compensation 23 60  
Class of Warrant or Right, Outstanding 7,634,101    
Warrants Owned by Pine River 500,000    
Discontinued Operation, 2013 Gain (Loss) on Disposal of Discontinued Operation, Net of Tax     4,000
Reduction of 2013 Management Fees     4,300
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax $ 1,239 $ 0