Net Income Per Share Available to Common Stock (Tables)

9 Months Ended

Sep. 30, 2014

Earnings Per Share [Abstract]

Schedule of Basic and Diluted Net Income Per Share Available to Common Stock

The following table sets forth the computation of our basic and diluted net income per share available to common stock (in thousands, except per share amounts):

	Three Months Ended September 30,						Nine Months Ended September 30,
	2014			2013			2014			2013
Numerator:
Basic:
Net income	$	21,866		$	11,856		$	55,813		$	28,718
Less: undistributed earnings allocated to participating securities	(681		)	(6,018		)	(15,257		)	(14,844		)
Net income available to common stockholders, basic	$	21,185		$	5,838		$	40,556		$	13,874
Diluted:
Net income attributable to common stockholders, basic	$	21,185		$	5,838		$	40,556		$	13,874
Add: undistributed earnings allocated to participating securities	70			290			1,353			586
Net income attributable to common stockholders, diluted	$	21,255		$	6,128		$	41,909		$	14,460
Denominator:
Basic:
Weighted-average shares used in computing net income per share available to common stockholders, basic	62,402			27,557			43,453			26,927
Diluted:
Weighted-average shares used in computing net income per share available to common stockholders, basic	62,402			27,557			43,453			26,927
Add weighted-average effect of dilutive securities:
Stock options and RSAs	7,161			2,848			5,795			2,308
Employee stock purchase plan	174			—			75			—
Stock purchase rights	—			7			—			6
Weighted-average shares used in computing net income per share available to common stockholders, diluted	69,737			30,412			49,323			29,241
Net income per share attributable to common stockholders:
Basic	$	0.34		$	0.21		$	0.93		$	0.52
Diluted	$	0.30		$	0.20		$	0.85		$	0.49

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share

The following outstanding shares of common stock equivalents were excluded from the computation of diluted net income per share available to common stockholders for the periods presented because including them would have been anti-dilutive (in thousands):

	Three Months Ended September 30,		Nine Months Ended September 30,
	2014	2013	2014	2013
Stock options and RSAs to purchase common stock	120	1,396	1,480	1,416