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Earnings Per Share
 9 Months Ended
Sep. 30, 2015
Earnings Per Share  
Earnings Per Share

 

10. Earnings Per Share

 

Basic net income per share is calculated by dividing the net income attributable to common shares by the weighted-average number of common shares outstanding during the period. Diluted net income per share adjusts basic net income per share for the effects of potentially dilutive common shares, if the effect is not antidilutive. Potentially dilutive common stock consist of shares issuable under the 2010 Plan. The following is a summary of basic and diluted net income per share (in thousands, except share and per share amounts):

 

 

 

Three Months Ended September 30,

 

Nine Months Ended September 30,

 

 

 

2015

 

2014

 

2015

 

2014

 

Net income attributable to common shares

 

$
6,920 

 

$
3,147 

 

$
17,026 

 

$
9,763 

 

Weighted-average common shares outstanding - basic

 
26,126,332 

 
21,214,825 

 
24,029,106 

 
21,113,700 

 

Effect of potentially dilutive common shares:

 

 

 

 

 

 

 

 

 

Stock options

 
238,386 

 
338,674 

 
329,833 

 
360,707 

 

Unvested awards

 
184,819 

 
155,260 

 
185,673 

 
205,524 

 

 

 

 

 

 

 

 

 

 

 

Weighted-average common shares outstanding - diluted

 
26,549,537 

 
21,708,759 

 
24,544,612 

 
21,679,931 

 

 

 

 

 

 

 

 

 

 

 

Net income per share attributable to common shares

 

 

 

 

 

 

 

 

 

Basic

 

$
0.26 

 

$
0.15 

 

$
0.71 

 

$
0.46 

 

Diluted

 

$
0.26 

 

$
0.14 

 

$
0.69 

 

$
0.45 

 

 

In the calculations above, we have excluded weighted-average potentially dilutive securities of 40,565 and 146,216 for the three months ended September 30, 2015, and 2014, respectively, and 157,534 and 187,404 for the nine months ended September 30, 2015, and 2014, respectively, as their effect would have been antidilutive.