Debt (Details 2) (Operating Partnership, USD $)
0 Months Ended
Aug. 29, 2013
Feb. 21, 2014
Dec. 31, 2013
item
Nov. 08, 2013
LIBOR | Adjusted LIBOR Rate Loans and Letter of Credit | Consolidated Leverage Ratio, 35%
       
Debt        
Consolidated leverage ratio, maximum (as a percent) 35.00%      
Variable rate basis LIBOR      
Margin (as a percent) 2.65%      
LIBOR | Adjusted LIBOR Rate Loans and Letter of Credit | Consolidated Leverage Ratio, >35% and 45%
       
Debt        
Consolidated leverage ratio, minimum (as a percent) 35.00%      
Consolidated leverage ratio, maximum (as a percent) 45.00%      
Variable rate basis LIBOR      
Margin (as a percent) 2.85%      
LIBOR | Adjusted LIBOR Rate Loans and Letter of Credit | Consolidated Leverage Ratio, >45% and 50%
       
Debt        
Consolidated leverage ratio, minimum (as a percent) 45.00%      
Consolidated leverage ratio, maximum (as a percent) 50.00%      
Variable rate basis LIBOR      
Margin (as a percent) 2.95%      
LIBOR | Adjusted LIBOR Rate Loans and Letter of Credit | Consolidated Leverage Ratio, >50%
       
Debt        
Consolidated leverage ratio, minimum (as a percent) 50.00%      
Variable rate basis LIBOR      
Margin (as a percent) 3.40%      
Base Rate | Base Rate Loans | Consolidated Leverage Ratio, 35%
       
Debt        
Consolidated leverage ratio, maximum (as a percent) 35.00%      
Variable rate basis Base Rate      
Margin (as a percent) 1.65%      
Base Rate | Base Rate Loans | Consolidated Leverage Ratio, >35% and 45%
       
Debt        
Consolidated leverage ratio, minimum (as a percent) 35.00%      
Consolidated leverage ratio, maximum (as a percent) 45.00%      
Variable rate basis Base Rate      
Margin (as a percent) 1.85%      
Base Rate | Base Rate Loans | Consolidated Leverage Ratio, >45% and 50%
       
Debt        
Consolidated leverage ratio, minimum (as a percent) 45.00%      
Consolidated leverage ratio, maximum (as a percent) 50.00%      
Variable rate basis Base Rate      
Margin (as a percent) 1.95%      
Base Rate | Base Rate Loans | Consolidated Leverage Ratio, >50%
       
Debt        
Consolidated leverage ratio, minimum (as a percent) 50.00%      
Variable rate basis Base Rate      
Margin (as a percent) 2.40%      
Senior secured revolving credit facility
       
Debt        
Maximum borrowing capacity $ 75,000,000 $ 140,000,000 $ 90,000,000 $ 90,000,000
Maximum borrowing capacity, option 250,000,000      
Term of facility 3 years      
Number of properties included in borrowing base     10  
Net book value of properties included in the borrowing base     109,000,000  
Amount outstanding     0  
Current borrowing capacity     $ 68,300,000