Quarterly report pursuant to Section 13 or 15(d)

SELF STORAGE PROPERTY ACQUISITIONS - Pro Forma Information (Details)

v3.5.0.2
SELF STORAGE PROPERTY ACQUISITIONS - Pro Forma Information (Details)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2016
USD ($)
property
Jun. 30, 2016
property
Mar. 31, 2016
property
Sep. 30, 2015
USD ($)
property
Jun. 30, 2015
property
Mar. 31, 2015
property
Sep. 30, 2016
USD ($)
property
Sep. 30, 2015
USD ($)
Dec. 31, 2015
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]                  
Pro forma revenue $ 55,032     $ 47,480     $ 159,141 $ 134,423  
Pro forma net income (loss) $ 10,560     $ 959     $ 30,308 (1,620)  
Number of self storage properties acquired | property 34 25 17 15 21 6 76    
Number of businesses acquired for which pro forma financial information is available | property 32   15 1          
Number of businesses acquired for which pro forma financial information is not available | property 2   2 14          
Acquisition costs $ 1,737     $ 2,874     $ 4,733 4,192  
Credit Facility [Member] | Line of Credit [Member] | Revolving line of credit [Member]                  
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]                  
Effective interest rate 1.93%           1.93%   1.93%
Subsequent Acquisitions [Member]                  
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]                  
Pro forma revenue $ 419     382     $ 1,206 976  
Pro forma net income (loss) 77     (98)     153 (440)  
July To September 2016 Acquisitions [Member]                  
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]                  
Pro forma revenue 1,664     4,393     11,317 13,177  
Pro forma net income (loss) 759     (1,214)     1,781 (3,608)  
April To June 2016 Acquisitions [Member]                  
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]                  
Pro forma revenue 0     5,053     5,894 14,791  
Pro forma net income (loss) 1,268     (610)     5,758 (2,177)  
January To March 2016 Acquisitions [Member]                  
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]                  
Pro forma revenue 0     1,865     842 5,455  
Pro forma net income (loss) 478     (70)     $ 2,548 (2,162)  
Number of self storage properties acquired | property             17    
Number of businesses acquired for which pro forma financial information is available | property             15    
Number of businesses acquired for which pro forma financial information is not available | property             2    
July To September 2015 Acquisitions [Member]                  
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]                  
Pro forma revenue 0     109     $ 0 537  
Pro forma net income (loss) 34     53     169 3,047  
April To June 2015 Acquisitions [Member]                  
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]                  
Pro forma revenue 0     0     0 3,782  
Pro forma net income (loss) 0     472     1,055 2,764  
January To March 2015 Acquisitions [Member]                  
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]                  
Pro forma revenue 0     0     0 86  
Pro forma net income (loss) 0     317     53 1,525  
Consolidated Entities Excluding Acquirees [Member]                  
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]                  
Pro forma revenue 52,949     35,678     139,882 95,619  
Pro forma net income (loss) $ 7,944     $ 2,109     $ 18,791 $ (569)