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Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Mar. 31, 2014
Mortgages Debt
Dec. 31, 2013
Mortgages Debt
Mar. 31, 2014
Building and Building Improvements
Mar. 31, 2014
Equipment and fixtures
Minimum
Mar. 31, 2014
Equipment and fixtures
Maximum
Significant Accounting Policies [Line Items]              
Amortization expense for intangible assets $ 729 $ 118          
Amortization expense for intangible assets expected for remainder of 2014 1,827            
Intangible assets amortization period 6 months            
Useful life         40 years 5 years 10 years
Depreciation expense 2,123 1,036          
Mortgage indebtedness, carrying value     188,850 100,803      
Mortgage indebtedness, fair value     $ 189,800 $ 101,272