XML 20 R10.htm IDEA: XBRL DOCUMENT v3.10.0.1
Earnings Per Share
 6 Months Ended
Jun. 30, 2018
Earnings Per Share [Abstract]  
Earnings Per Share
Earnings Per Share
Basic earnings per share is computed on the basis of the weighted average number of common shares outstanding during the period. Diluted earnings per share includes the dilutive effect of stock options and other stock units. The following table sets forth the computation of basic and diluted earnings per share:
 
Three Months Ended
June 30,
 
Six Months Ended
June 30,
 
2018
 
2017
 
2018
 
2017
Numerator
 
 
 
 
 
 
 
Numerator for basic and diluted earnings per share - Net income attributable to common stockholders
$
15,008

 
$
45,310

 
$
23,292

 
$
75,872

Denominator
 
 
 
 
 
 
 
Denominator for basic earnings per share - weighted average shares outstanding
50,436

 
52,796

 
50,636

 
52,815

Effect of dilutive securities - stock options and other stock units
154

 
395

 
247

 
542

Denominator for diluted earnings per share - adjusted weighted average shares outstanding
50,590

 
53,191

 
50,883

 
53,357

Earnings per share:
 
 
 
 
 
 
 
Basic
$
0.30

 
$
0.86

 
$
0.46

 
$
1.44

Diluted
$
0.30

 
$
0.85

 
$
0.46

 
$
1.42


All options to purchase shares of the Company’s common stock were included in the computation of diluted earnings per share as the options’ exercise prices were less than the average market price of the common shares at both June 30, 2018 and 2017.