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Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Significant Accounting Policies [Line Items]      
Federal Deposit Insurance Corporation deposit insurance limit per institution $ 250    
Restricted cash 1,122 1,150  
Amortization expense for intangible assets 490    
Amortization expense for intangible assets expected for 2014 517    
Depreciation expense 3,923 3,411 1,748
Income tax expense 0 0 0
Taxable income distributable to stockholders 90.00%    
Mortgages Debt
     
Significant Accounting Policies [Line Items]      
Mortgage indebtedness, carrying value 100,803 92,413  
Mortgage indebtedness, fair value $ 101,272 $ 95,827  
Maximum
     
Significant Accounting Policies [Line Items]      
Cash and cash equivalents maturity period 3    
Building and Building Improvements
     
Significant Accounting Policies [Line Items]      
Useful life 40 years    
Equipment and fixtures | Minimum
     
Significant Accounting Policies [Line Items]      
Useful life 5 years    
Equipment and fixtures | Maximum
     
Significant Accounting Policies [Line Items]      
Useful life 10 years