Net Loss per Share (Tables)

12 Months Ended

Dec. 31, 2013

Net Loss per Share

Computations for basic and diluted net income loss per share

	Year Ended December 31,
(In thousands, except for per share data)	2013			2012			2011
Numerator:
Net loss	$	(170,701	)	$	(18,542	)	$	(115,344	)
Denominator:
Weighted-average shares of stock outstanding		104,789			93,410			84,493
Less: unvested RSAs		(2,364	)		(2,501	)		(2,442	)
Weighted-average shares used to compute basic and diluted net loss per share		102,425			90,909			82,051
Net loss per share:
Basic and diluted net loss per share	$	(1.67	)	$	(0.20	)	$	(1.41	)

Schedule of anti-dilutive securities

	Year Ended December 31,
(In thousands)	2013		2012		2011
Shares issuable under Equity Incentive Plans and ESPP		4,095		5,367		5,464
Shares issuable upon the conversion of convertible subordinated notes		2,780		6,668		6,668
Total anti-dilutive securities		6,875		12,035		12,132