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2. Net Loss per Share
Basic net loss per share (basic EPS) is computed by dividing net loss by the weighted-average number of common shares outstanding during the period, less RSAs subject to forfeiture. Diluted net loss per share (diluted EPS) is computed by dividing net loss by the weighted-average number of common shares outstanding during the period, less RSAs subject to forfeiture, plus dilutive potential common shares. Diluted EPS is identical to basic EPS for all periods presented since potential common shares are excluded from the calculation, as their effect is anti-dilutive.
Weighted-Average Shares Outstanding
The following table sets forth the computation of basic and diluted net loss and the weighted-average number of shares used in computing basic and diluted net loss per share:
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|
|
|
|
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|
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|
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Year Ended December 31, |
|
|
|
2011 |
|
2010 |
|
2009 |
|
|
|
(in thousands, except
for per share data)
|
|
|
Basic and diluted: |
|
|
|
|
|
|
|
|
|
|
|
Net loss |
|
$ |
(115,344 |
) |
$ |
(83,862 |
) |
$ |
(85,302 |
) |
| |
|
|
|
|
|
|
|
|
Weighted-average shares of common stock outstanding |
|
|
84,493 |
|
|
72,103 |
|
|
63,084 |
|
|
Less: unvested RSAs |
|
|
(2,442 |
) |
|
(33 |
) |
|
(57 |
) |
| |
|
|
|
|
|
|
|
|
Weighted-average shares used in computing basic and diluted net loss per common share |
|
|
82,051 |
|
|
72,070 |
|
|
63,027 |
|
| |
|
|
|
|
|
|
|
|
Basic and diluted net loss per common share |
|
$ |
(1.41 |
) |
$ |
(1.16 |
) |
$ |
(1.35 |
) |
| |
|
|
|
|
|
|
|
Anti-dilutive securities
Securities that were not included in the computation of diluted EPS because their effect would have been anti-dilutive were as follows:
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|
|
|
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|
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|
Year Ended December 31, |
|
|
(in thousands) |
|
2011 |
|
2010 |
|
2009 |
|
|
Shares issuable upon the exercise of stock options |
|
|
4,610 |
|
|
5,823 |
|
|
6,646 |
|
|
Shares issuable under RSUs and RSAs |
|
|
854 |
|
|
813 |
|
|
444 |
|
|
Shares issuable upon the conversion of convertible debt |
|
|
6,668 |
|
|
6,668 |
|
|
6,668 |
|
| |
|
|
|
|
|
|
|
|
Total anti-dilutive securities |
|
|
12,132 |
|
|
13,304 |
|
|
13,758 |
|
| |
|
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|
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|
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