Net Income (Loss) Per Share (Tables)

3 Months Ended

Mar. 31, 2018

Earnings Per Share [Abstract]

Schedule of Basic and Diluted Net Income (Loss) Per Share

The following table presents the calculation of basic and diluted net income (loss) per share (in thousands, except share and per share data): 

	Three Months Ended March 31,
	2018		2017
			*As Adjusted
Numerator:
Net income (loss)	$	10,622	$	(21,514	)
Denominator:
Weighted-average shares outstanding - basic	175,482,833		168,742,366
Weighted-average effect of potentially dilutive securities:
Common stock options	1,995,185		—
Restricted stock units	5,869,792		—
ESPP obligations	7,510		—
In-the-money portion of 2018 Notes	3,794,221		—
2018 Warrants	2,363,658		—
In-the-money portion of 2022 Notes	736,587		—
Weighted-average shares outstanding - diluted	190,249,786		168,742,366
Net income (loss) per share - basic	$	0.06	$	(0.13	)
Net income (loss) per share - diluted	$	0.06	$	(0.13	)

*As adjusted to reflect the impact of the full retrospective adoption of Topic 606. See Note 2 for further details.

Schedule of Potentially Dilutive Securities

Potentially dilutive securities (in weighted-average terms for periods in which we have a net income) that are not included in the calculation of diluted net income (loss) per share because doing so would be antidilutive are as follows:

	March 31,
	2018	2017
Common stock options	—	5,649,375
Restricted stock units	38,114	14,129,353
ESPP obligations	—	290,102
2018 convertible senior notes	—	7,783,023
Warrants related to the issuance of 2018 convertible senior notes	—	7,783,023
Warrants related to the issuance of 2022 convertible senior notes	5,806,933	—
Total potentially dilutive securities	5,845,047	35,634,876