Numerator, basic:

Net income (loss)

$

6,155

$

(26,376

)

$

31,198

$

(50,647

)

Denominator, basic:

Weighted average common shares outstanding

46,202

41,793

44,601

41,766

Net income (loss) per share, basic

$

0.13

$

(0.63

)

$

0.70

$

(1.21

)

Numerator, diluted:

Net income (loss)

$

6,155

$

(26,376

)

$

31,198

$

(50,647

)

Adjustment for change in fair value of warrant liabilities

—

(43,793

)

—

Adjusted numerator, diluted

$

6,155

$

(26,376

)

$

(12,595

)

$

(50,647

)

Denominator, diluted:

Weighted average common shares outstanding

46,202

41,793

44,601

41,766

Dilutive effect of common stock warrants

—

551

—

Weighted average dilutive common shares

46,202

41,793

45,152

41,766

Net income (loss) per share, diluted

$

0.13

$

(0.63

)

$

(0.28

)

$

(1.21

)

Dilutive common stock options excluded from net income (loss) per share, diluted

2,703

2,001

2,674

2,018

Dilutive Performance Awards excluded from net income (loss) per share, diluted

7