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Earnings per share of QTS Realty Trust, Inc. (Tables)
 3 Months Ended
Mar. 31, 2018
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,

 

    

2018

    

2017

Numerator:

 

 

 

 

 

 

Net income (loss)

 

$

(252)

 

$

5,568

Loss (income) attributable to noncontrolling interests

 

 

29

 

 

(691)

Preferred stock dividends

 

 

(328)

 

 

 —

Earnings attributable to participating securities

 

 

(258)

 

 

(233)

Net income (loss) available to common stockholders after allocation of participating securities

 

$

(809)

 

$

4,644

Denominator:

 

 

 

 

 

 

Weighted average shares outstanding - basic

 

 

50,279

 

 

47,485

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

 

 

 —

 

 

876

Weighted average shares outstanding - diluted

 

 

50,279

 

 

48,361

 

 

 

 

 

 

 

Basic net income (loss) per share

 

$
(0.02)

 

$
0.10

 

 

 

 

 

 

 

Diluted net income (loss) per share

 

$
(0.02)

 

$
0.10

Does not include Class A partnership units of 6.6 million and 6.8 million for the three months ended March 31, 2018 and 2017, respectively, and 0.5 million reflecting the effects of Class O units and options to purchase common stock on an "as if" converted basis for the three months ended March 31, 2018, as their respective inclusion would have been antidilutive.