Net Income (Loss) Per Share (Tables)

6 Months Ended

Jun. 30, 2013

Earnings Per Share [Abstract]

Computation of Basic and Diluted Net Loss Per Share

The following table sets forth the computation of basic and diluted shares (in thousands, except per share amounts):

	Three Months Ended				Six Months Ended
	June 30, 2013		June 30, 2012		June 30, 2013		June 30, 2012
Denominator:
Weighted average common shares outstanding	53,238		51,913		52,865		51,799
Less: Unvested common shares subject to repurchase	(81	)	(32	)	(76	)	(34	)
Total common shares-basic	53,157		51,881		52,789		51,765
Effect of dilutive securities:
Stock awards	591		53		—		—
Restricted stock awards and units	236		138		—		—
Total common shares-diluted	53,984		52,072		52,789		51,765