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Income Taxes and Distributions (Details Textuals) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Income Tax Textuals [Line Items]        
Income tax provision $ 6,451 $ (1,267) $ 7,491  
NOL Carryforwards $ 443,197      
Carryforwards expiration date Dec. 31, 2035      
Valuation allowance $ 98,966 85,207 71,955 $ 12,199
Percentage of taxable income to be distributed to stockholders for federal tax purposes 90.00%      
Percentage of net capital gains on taxable income distributed to stockholders 100.00%      
Percentage of federal excise tax on real estate investment trusts that do not distribute income 4.00%      
International [Member]        
Income Tax Textuals [Line Items]        
Income tax provision $ 7,385 (6,069) $ (484)  
Canada [Member]        
Income Tax Textuals [Line Items]        
NOL Carryforwards $ 78,680 $ 32,085    
Operating Loss Carryforwards Limitations On Use These Canadian losses have a 20-year carryforward period. These Canadian losses have a 20-year carryforward period.    
United Kingdom [Member]        
Income Tax Textuals [Line Items]        
NOL Carryforwards $ 179,598 $ 177,079