Net Loss per Share

12 Months Ended

Dec. 31, 2011

Net Loss per Share

Net Loss per Share

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:

	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:

	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