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Computation of Earnings per Share
 6 Months Ended
Jun. 30, 2011
Computation of Earnings per Share

Note 3 — Computation of Earnings per Share

The following table sets forth the reconciliation of basic and diluted earnings per share (in thousands, except per share data):

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Three Months Ended
June 30,

 

Six Months Ended
June 30,

 

 

 

 

 

 

 

2011

 

2010

 

2011

 

2010

 

 

 

 

 

 

 

Numerator:

 

 

 

 

 

 

 

 

 

 

 

 

 

Net income used for calculating basic and diluted earnings per share

 

$

32,223

 

$

20,113

 

$

61,414

 

$

39,516

 

 

 

 

 

 

 

Denominator:

 

 

 

 

 

 

 

 

 

 

 

 

 

Weighted average number of common shares used in the calculation of basic earnings per share

 

 

96,886

 

 

95,657

 

 

96,664

 

 

95,810

 

Common stock equivalents associated with stock-based compensation plans (1), (2)

 

 

2,454

 

 

3,198

 

 

2,978

 

 

3,879

 

 

 

 

 

 

 

Shares used in the calculation of diluted earnings per share

 

 

99,340

 

 

98,855

 

 

99,642

 

 

99,689

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Basic earnings per share

 

$

0.33

 

$

0.21

 

$

0.64

 

$

0.41

 

 

 

 

 

 

 

Diluted earnings per share

 

$

0.32

 

$

0.20

 

$

0.62

 

$

0.40

 

 

 

 

 

 

 

 

 

 

 

(1)

For the three months ended June 30, 2011 and 2010, 0.8 million and 1.6 million respectively, of common stock equivalents were not included in the computation of diluted earnings per share because the effect would have been anti-dilutive.

 

 

 

(2)

For the six months ended June 30, 2011 and 2010, 0.3 million and 0.4 million respectively, of common stock equivalents were not included in the computation of diluted earnings per share because the effect would have been anti-dilutive.