Annual report pursuant to Section 13 and 15(d)

COMMITMENTS AND CONTINGENCIES - Operating Leases (Details)

v3.3.1.900
COMMITMENTS AND CONTINGENCIES - Operating Leases (Details)
$ in Thousands
 1 Months Ended 12 Months Ended
Jan. 31, 2015
property
Mar. 31, 2014
Dec. 31, 2015
USD ($)
Dec. 31, 2014
USD ($)
Other Commitments [Line Items]        
Number of self storage properties that are subject to non-cancelable leasehold interest agreements | property 3      
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]        
2016     $ 949  
2017     966  
2018     974  
2019     982  
2020     976  
2021 through 2055     26,405  
Total operating leases     31,252  
Ground Leases [Member]        
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]        
2016     833  
2017     847  
2018     852  
2019     857  
2020     902  
2021 through 2055     26,405  
Total operating leases     30,696  
Office Building [Member]        
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]        
2016     116  
2017     119  
2018     122  
2019     125  
2020     74  
2021 through 2055     0  
Total operating leases     556  
Office Building [Member] | Greenwood Village, Colorado        
Other Commitments [Line Items]        
Additional term   5 years    
Office Building [Member] | Greenwood Village, Colorado | Property Operating Expenses [Member]        
Other Commitments [Line Items]        
Rent expense (less than $0.1 million in 2014)     100 $ 100
2015 Acquisitions [Member] | Property Operating Expenses [Member]        
Other Commitments [Line Items]        
Rent expense (less than $0.1 million in 2014)     900  
2014 Acquisitions [Member] | Property Operating Expenses [Member]        
Other Commitments [Line Items]        
Rent expense (less than $0.1 million in 2014)     $ 100 $ 100