Net Income (Loss) Per Share

9 Months Ended

Sep. 30, 2012

Net Income (Loss) Per Share [Abstract]

Net Income (Loss) Per Share

4. Net Income (Loss) Per Share

The following table sets forth the computation of basic and diluted net income (loss) per share (in thousands, except per share data).

	Three Months Ended September 30,					Nine Months Ended September 30,
	2012		2011			2012			2011
Net income (loss)	$	3,279	$	(3,688	)	$	(9,136	)	$	(58,770	)
Weighted average common basic shares		40,873		48,232			40,856			48,248
Effect of dilutive securities		70		—			—			—
Weighted average common dilutive shares		40,943		48,232			40,856			48,248
Basic and diluted net income (loss) per share	$	0.08	$	(0.08	)	$	(0.22	)	$	(1.22	)

For the three months ended September 30, 2012, the computation of diluted net income per share included 70 thousand shares of unvested restricted common stock. For the three months ended September 30, 2011 and both the nine months ended September 30, 2012 and 2011, the computation of diluted net loss per share did not include 70 thousand shares of unvested restricted common stock as their inclusion would have been anti-dilutive. Options to purchase approximately 1.6 million and 4.5 million shares for both the three and nine months ended September 30, 2012 and 2011, respectively, were not included in the computation of diluted net income (loss) per share as their exercise prices were in excess of the average stock prices for the periods presented.