Quarterly report pursuant to Section 13 or 15(d)

SELF STORAGE PROPERTY ACQUISITIONS AND DISPOSITIONS - Narrative (Details)

v3.7.0.1
SELF STORAGE PROPERTY ACQUISITIONS AND DISPOSITIONS - Narrative (Details)
$ in Millions
3 Months Ended
Mar. 31, 2017
USD ($)
property
Business Acquisition [Line Items]  
Acquisition-related costs capitalized $ 0.2
Recognized fair value allocated to real estate $ 31.2
Number of self storage properties sold | property 1
Gross selling price of self storage properties sold $ 5.3
Customer In-Place Leases [Member]  
Business Acquisition [Line Items]  
Recognized fair value allocated to in-place leases $ 0.7
Affiliated Entity [Member] | Participating Regional Operator [Member]  
Business Acquisition [Line Items]  
Number of self storage properties acquired | property 2
Estimated fair value of acquired self storage properties $ 11.3
All 2017 Acquisitions [Member]  
Business Acquisition [Line Items]  
Number of self storage properties acquired | property 5
Estimated fair value of acquired self storage properties $ 31.9