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Summary of Significant Accounting Policies (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Summary of Significant Accounting Policies (Textual) [Abstract]      
Minimum percentage of adjusted taxable income to be distributed to shareholders as a real estate investment trust 90.00%    
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest $ 90,586 $ 72,116 $ 44,578
Accumulated other comprehensive income (loss) $ (4,750) $ (341)  
Minimum [Member] | Land, Buildings and Improvements [Member]      
Property, Plant and Equipment [Line Items]      
Estimated useful life (in years) 10 years    
Minimum [Member] | Furniture Fixtures And Equipment [Member]      
Property, Plant and Equipment [Line Items]      
Estimated useful life (in years) 1 year    
Maximum [Member] | Land, Buildings and Improvements [Member]      
Property, Plant and Equipment [Line Items]      
Estimated useful life (in years) 40 years    
Maximum [Member] | Furniture Fixtures And Equipment [Member]      
Property, Plant and Equipment [Line Items]      
Estimated useful life (in years) 10 years