Three months ended
September 30,

Nine months ended
September 30,

2012

2011

2012

2011

(in thousands, except per share data)

Income (loss)

$

(8,718

)

$

1,151

$

(19,216

)

$

7,190

Weighted average common shares outstanding used in computing basic net income (loss) per share

107,855

106,417

107,521

106,152

Incremental shares

—

1,775

—

3,300

Weighted average common shares outstanding used in computing diluted net income (loss) per share

107,855

108,192

107,521

109,452

Net income (loss) per share:

Basic

$

(0.08

)

$

0.01

$

(0.18

)

$

0.07

Diluted

$

(0.08

)

$

0.01

$

(0.18

)

$

0.07