Quarterly report pursuant to Section 13 or 15(d)

RELATED PARTY TRANSACTIONS (Details)

v3.2.0.727
RELATED PARTY TRANSACTIONS (Details) - Business Acquisition, Acquiree [Domain]
$ in Thousands
1 Months Ended 2 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended
Apr. 01, 2015
shares
Jan. 01, 2015
property
Jan. 31, 2015
property
May. 31, 2015
property
Jun. 30, 2015
USD ($)
ft²
property
Mar. 31, 2015
USD ($)
property
Jun. 30, 2014
USD ($)
Jun. 30, 2015
USD ($)
ft²
property
Jun. 30, 2014
USD ($)
Dec. 31, 2014
USD ($)
property
Jul. 01, 2014
USD ($)
Related Party Transaction [Line Items]                      
General and administrative expenses         $ 4,187   $ 1,796 $ 7,800 $ 3,134    
Property operating expenses         10,826   6,033 20,668 10,955    
Note receivable from PRO         0     0   $ 1,778  
Loan receivable settled in self storage property acquisition         $ 0 $ 1,778   $ 1,778      
Number of self storage properties acquired | property   5 6 21 21 6   27      
Participating Regional Operator [Member] | Management [Member]                      
Related Party Transaction [Line Items]                      
Note receivable from PRO                     $ 8,000
Loan receivable settled in self storage property acquisition                   $ 6,200  
Number of self storage properties acquired | property     2             13  
Bridge loan agreement         $ 5,300     $ 5,300      
Related party, weighted average fixed rate         3.30%     3.30%      
Participating Regional Operator [Member] | Affiliated Entity [Member]                      
Related Party Transaction [Line Items]                      
Number of self storage properties acquired | property               10      
Participating Regional Operator [Member] | Other assets, net [Member] | Management [Member]                      
Related Party Transaction [Line Items]                      
Note receivable from PRO                   $ 1,800  
SecuCare Self Storage Inc. [Member] | Affiliated Entity [Member]                      
Related Party Transaction [Line Items]                      
Due to Affiliate             3,200   3,200    
Supervisory and Administrative Fee Agreement [Member] | Participating Regional Operator [Member] | Management [Member]                      
Related Party Transaction [Line Items]                      
General and administrative expenses         $ 1,800   900 $ 3,400 1,700    
Supervisory and Administrative Fee Agreement [Member] | Participating Regional Operator [Member] | Minimum [Member] | Management [Member]                      
Related Party Transaction [Line Items]                      
Fee agreement on gross revenue, percent               5.00%      
Supervisory and Administrative Fee Agreement [Member] | Participating Regional Operator [Member] | Maximum [Member] | Management [Member]                      
Related Party Transaction [Line Items]                      
Fee agreement on gross revenue, percent               6.00%      
Payroll Services [Member] | Participating Regional Operator [Member] | Management [Member]                      
Related Party Transaction [Line Items]                      
Property operating expenses         $ 3,200   1,600 $ 6,100 3,100    
Call Center Services [Member] | SecuCare Self Storage Inc. [Member] | Affiliated Entity [Member]                      
Related Party Transaction [Line Items]                      
Property operating expenses             $ 100 $ 200 $ 200    
Area occupied by related party | ft²         1,500     1,500      
Annual rent               $ 25      
Call Center Services [Member] | SecuCare Self Storage Inc. [Member] | Call Center [Member] | Affiliated Entity [Member]                      
Related Party Transaction [Line Items]                      
Issuance of OP units and subordinated performance units for acquisition of call center | shares 50,000