Annual report pursuant to Section 13 and 15(d)

RELATED PARTY TRANSACTIONS (Details)

v3.3.1.900
RELATED PARTY TRANSACTIONS (Details)
$ in Thousands
1 Months Ended 3 Months Ended 6 Months Ended 9 Months Ended 12 Months Ended
Apr. 01, 2015
shares
Feb. 28, 2014
USD ($)
property
Jan. 31, 2015
property
Dec. 31, 2015
USD ($)
ft²
property
Sep. 30, 2015
USD ($)
property
Jun. 30, 2015
USD ($)
property
Mar. 31, 2015
USD ($)
property
Dec. 31, 2014
USD ($)
property
Sep. 30, 2014
USD ($)
property
Jun. 30, 2014
USD ($)
property
Mar. 31, 2014
USD ($)
property
Mar. 31, 2013
USD ($)
Dec. 31, 2014
USD ($)
property
Dec. 31, 2013
USD ($)
Dec. 31, 2015
USD ($)
ft²
property
shares
Dec. 31, 2014
USD ($)
property
Dec. 31, 2012
property
Jul. 01, 2014
USD ($)
Related Party Transaction [Line Items]                                    
Affiliate payroll costs included in property operating expenses                           $ 11,886 $ 45,412 $ 27,913    
Note receivable from PRO       $ 0       $ 1,778         $ 1,778   $ 0 $ 1,778    
Number of self storage properties acquired | property       16 15 21 6 15 31 36 1       58 83 43  
Loan receivable settled in self storage property acquisition       $ 0 $ 0 $ 0 $ 1,778 $ 0 $ 0 $ 0 $ 0       $ 1,778 $ 0    
Receivable balance netted against equity interest issued in business acquisition               400 $ 4,800                  
Participating Regional Operator [Member] | Management [Member]                                    
Related Party Transaction [Line Items]                                    
Businesses acquired with bridge loans | property                         13          
Number of self storage properties acquired | property   2 2                   16          
Loan receivable settled in self storage property acquisition                         $ 6,200          
Receivable balance netted against equity interest issued in business acquisition                         5,200   1,400      
Reimbursements received on assumed mortgages                             $ 1,600      
Units issued upon reimbursement of assumed mortgages | shares                             85,130      
Bridge loan agreement       $ 5,300                     $ 5,300      
Related party loan, weighted average fixed rate       3.30%                     3.30%      
Participating Regional Operator [Member] | Management [Member] | Other assets, net [Member]                                    
Related Party Transaction [Line Items]                                    
Note receivable from PRO               $ 1,800         $ 1,800     $ 1,800    
Participating Regional Operator [Member] | Affiliated Entity [Member]                                    
Related Party Transaction [Line Items]                                    
Number of self storage properties acquired | property                             25 60    
SecuCare Self Storage Inc. [Member] | Affiliated Entity [Member]                                    
Related Party Transaction [Line Items]                                    
Fees and expenses                               $ 2,700    
Supervisory and Administrative Fee Agreement [Member] | Participating Regional Operator [Member] | Management [Member]                                    
Related Party Transaction [Line Items]                                    
Supervisory and administrative fees included in general and administrative expenses                           2,000 $ 7,600 4,500    
Supervisory and Administrative Fee Agreement [Member] | Participating Regional Operator [Member] | Minimum [Member] | Management [Member]                                    
Related Party Transaction [Line Items]                                    
Supervisory and administrative fee, percent of gross revenues                             5.00%      
Supervisory and Administrative Fee Agreement [Member] | Participating Regional Operator [Member] | Maximum [Member] | Management [Member]                                    
Related Party Transaction [Line Items]                                    
Supervisory and administrative fee, percent of gross revenues                             6.00%      
Affiliate Payroll Services [Member] | Participating Regional Operator [Member] | Management [Member]                                    
Related Party Transaction [Line Items]                                    
Affiliate payroll costs included in property operating expenses                           3,600 $ 13,400 8,400    
Affiliate Call Center Services [Member] | SecuCare Self Storage Inc. [Member] | Affiliated Entity [Member]                                    
Related Party Transaction [Line Items]                                    
Area occupied by call center | ft²       1,500                     1,500      
Annual rent for call center                             $ 25      
Fees and expenses                           300 200 500    
Affiliate Call Center Services [Member] | SecuCare Self Storage Inc. [Member] | Affiliated Entity [Member] | Call Center [Member]                                    
Related Party Transaction [Line Items]                                    
Issuance of OP units and subordinated performance units for acquisition of call center | shares 50,000                                  
Brokerage Fees [Member] | Participating Regional Operator [Member] | Management [Member]                                    
Related Party Transaction [Line Items]                                    
Fees and expenses                           $ 500 200 300    
Related Party Note [Member] | Participating Regional Operator [Member] | Management [Member]                                    
Related Party Transaction [Line Items]                                    
Note receivable from PRO   $ 4,800                               $ 8,000
Related party note interest rate   5.16%                                
NSA Predecessor [Member]                                    
Related Party Transaction [Line Items]                                    
Affiliate payroll costs included in property operating expenses                       $ 2,926            
NSA Predecessor [Member] | Supervisory and Administrative Fee Agreement [Member] | Participating Regional Operator [Member] | Management [Member]                                    
Related Party Transaction [Line Items]                                    
Supervisory and administrative fee, percent of gross revenues                       6.00%            
Supervisory and administrative fees included in general and administrative expenses                       $ 400            
NSA Predecessor [Member] | Affiliate Payroll Services [Member] | Participating Regional Operator [Member] | Management [Member]                                    
Related Party Transaction [Line Items]                                    
Affiliate payroll costs included in property operating expenses                       900            
NSA Predecessor [Member] | Affiliate Call Center Services [Member] | SecuCare Self Storage Inc. [Member] | Affiliated Entity [Member]                                    
Related Party Transaction [Line Items]                                    
Fees and expenses                       $ 100            
Acquisition Costs [Member] | Due Diligence Costs [Member] | Participating Regional Operator [Member] | Management [Member]                                    
Related Party Transaction [Line Items]                                    
Fees and expenses                             $ 600 $ 200