UNAUDITED SELECTED QUARTERLY FINANCIAL DATA (Tables)
12 Months Ended
Dec. 31, 2015
Quarterly Financial Information Disclosure [Abstract]  
Schedule of quarterly financial information
The following is a summary of quarterly financial information for the years ended December 31, 2015 and 2014 (in thousands, except per share data):
 
For the three months ended
 
March 31,
 
June 30,
 
September 30,
 
December 31,
 
2015
 
2015
 
2015
 
2015
Total revenues
$
28,291

 
$
31,650

 
$
35,678

 
$
38,300

Total operating expenses
23,332

 
24,987

 
26,397

 
27,612

Income from operations
4,959

 
6,663

 
9,281

 
10,688

Net income (loss)
(2,771
)
 
93

 
2,109

 
5,365

Net income (loss) attributable to National Storage Affiliates Trust
$

 
$
3,464

 
$
4,372

 
$
4,604

Earnings (loss) per share - basic
$

 
$
0.22

 
$
0.19

 
$
0.20

Earnings (loss) per share - diluted
$

 
$

 
$
0.03

 
$
0.08

 
For the three months ended
 
March 31,
 
June 30,
 
September 30,
 
December 31,
 
2014
 
2014
 
2014
 
2014
Total revenues
$
13,161

 
$
16,215

 
$
20,863

 
$
26,731

Total operating expenses
10,097

 
12,526

 
16,802

 
20,462

Income from operations
3,064

 
3,689

 
4,061

 
6,269

Net income (loss)
(2,803
)
 
(6,158
)
 
(5,025
)
 
(2,371
)
Net income (loss) attributable to National Storage Affiliates Trust
$

 
$

 
$

 
$

Earnings (loss) per share - basic
$

 
$

 
$

 
$

Earnings (loss) per share - diluted
$

 
$

 
$

 
$