Annual report pursuant to Section 13 and 15(d)

SELF STORAGE PROPERTY ACQUISITIONS AND DISPOSITIONS - Narrative (Details)

v3.3.1.900
SELF STORAGE PROPERTY ACQUISITIONS AND DISPOSITIONS - Narrative (Details)
$ in Thousands
1 Months Ended 2 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended
May. 31, 2014
USD ($)
property
Feb. 29, 2016
USD ($)
property
Dec. 31, 2015
USD ($)
property
Sep. 30, 2015
property
Jun. 30, 2015
property
Mar. 31, 2015
property
Dec. 31, 2014
USD ($)
property
Sep. 30, 2014
property
Jun. 30, 2014
property
Mar. 31, 2014
property
Dec. 31, 2013
USD ($)
Dec. 31, 2015
USD ($)
property
Dec. 31, 2014
USD ($)
property
Dec. 31, 2013
USD ($)
Dec. 31, 2012
property
Mar. 09, 2016
property
Business Acquisition [Line Items]                                
Number of self storage properties acquired | property     16 15 21 6 15 31 36 1   58 83   43  
Number of businesses acquired for which pro forma financial information is not available | property                       16        
Estimated fair value of acquired self storage properties     $ 313,000       $ 479,100         $ 313,000 $ 479,100      
Self storage properties, net     304,500       465,900       $ 159,509 304,500 465,900 $ 159,509    
Pro forma revenue                       19,300 21,800      
Pro forma operating income                       2,400 2,100      
Acquisition costs                     3,383 $ 4,765 9,558 $ 3,383    
Number of businesses acquired for which pro forma financial information is available | property                       42        
Number Of Businesses Sold | property 1                              
Gross selling price of self storage property sold $ 3,000                              
Gain on sale of self storage property $ 1,400                   $ 0 $ 0 1,427      
Leases, Acquired-in-Place [Member]                                
Business Acquisition [Line Items]                                
Recognized fair value of identifiable intangible assets     8,500       13,200         $ 8,500 $ 13,200      
Property Subject to Operating Lease [Member]                                
Business Acquisition [Line Items]                                
Number of self storage properties acquired | property                       3 1      
Participating Regional Operator [Member] | Affiliated Entity [Member]                                
Business Acquisition [Line Items]                                
Number of self storage properties acquired | property                       25 60      
Estimated fair value of acquired self storage properties     134,400       $ 382,100         $ 134,400 $ 382,100      
Subsequent Event [Member]                                
Business Acquisition [Line Items]                                
Number of self storage properties acquired | property   16                            
Aggregate purchase price   $ 85,000                            
Director [Member] | Affiliated Entity [Member]                                
Business Acquisition [Line Items]                                
Number of self storage properties acquired | property                       13        
Estimated fair value of acquired self storage properties     $ 65,300                 $ 65,300        
Forecast [Member]                                
Business Acquisition [Line Items]                                
Number of properties under contract to acquire | property                               22