Net Loss per Share (Tables)

3 Months Ended

Mar. 31, 2013

Net Loss Per Share

	Three Months Ended March 31,
	2013			2012
	(In thousands, except per share amounts)
Numerator:
Net loss	$	(23,548	)	$	(9,144	)
Denominator:
Weighted-average common shares outstanding		47,249			35,629
Basic and diluted net loss per share	$	(0.50	)	$	(0.26	)
Outstanding securities at period end not included in the computation of diluted net loss per share as they had an anti-dilutive effect:
Restricted stock units and options to purchase common stock		7,151			6,568
Warrants outstanding		283			305
		7,434			6,873