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Earnings per share of QTS Realty Trust, Inc. (Tables)
 3 Months Ended
Mar. 31, 2017
Earnings per Share [Abstract]  
Summary of Basic and Diluted Earnings Per Share

The computation of basic and diluted net income per share is as follows (in thousands, except per share data, and unaudited):

 

 

 

 

 

 

 

 

 

 

Three Months Ended

 

 

March 31,

 

    

2017

    

2016

Numerator:

 

 

 

 

 

 

Net income available to common stockholders - basic

 

$

4,877

 

$

5,889

Effect of net income attributable to noncontrolling interests

 

 

691

 

 

970

Net income available to common stockholders - diluted

 

$

5,568

 

$

6,859

Denominator:

 

 

 

 

 

 

Weighted average shares outstanding - basic

 

 

47,909

 

 

41,292

Effect of Class A and Class RS partnership units *

 

 

6,783

 

 

6,801

Effect of Class O units and options to purchase Class A common stock on an "as if" converted basis *

 

 

928

 

 

881

Weighted average shares outstanding - diluted

 

 

55,620

 

 

48,974

 

 

 

 

 

 

 

Net income per share attributable to common stockholders - basic

 

$
0.10

 

$
0.14

Net income per share attributable to common stockholders - diluted

 

$
0.10

 

$
0.14

*

The Class A units, Class RS units and Class O units represent limited partnership interests in the Operating Partnership, and are described in more detail in Note 8.