Three months ended
June 30,

Six months ended
June 30,

2012

2011

2012

2011

(in thousands, except per share data)

Income (loss)

$

(471

)

$

4,227

$

(10,499

)

$

6,039

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

107,639

106,097

107,353

106,017

Incremental shares

—

2,814

—

3,706

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

107,639

108,911

107,353

109,723

Net income (loss) per share:

Basic

$

(0.00

)

$

0.04

$

(0.10

)

$

0.06

Diluted

$

(0.00

)

$

0.04

$

(0.10

)

$

0.06