Net Loss per Share (Tables)

3 Months Ended

Mar. 31, 2016

Earnings Per Share [Abstract]

Schedule of Computation of Net Loss per Common Share

The following table sets forth the computation of net loss per common share (in thousands, except per share amounts):

	Three Months Ended March 31,
	2016			2015
Numerator:
Net loss	$	(155,900	)	$	(133,964	)
Denominator:
Weighted average number of shares outstanding—basic and diluted	158,781			151,651
Net loss per share—basic and diluted	$	(0.98	)	$	(0.88	)

Schedule of Outstanding Options and Unvested Shares Excluded from Computation of Diluted Net Loss per Share

The following outstanding options and unvested shares were excluded (as common stock equivalents) from the computation of diluted net loss per common share for the periods presented as their effect would have been anti-dilutive (in thousands):

	As of March 31,
	2016	2015
Options to purchase common stock	10,627	15,403
Unvested early exercised common shares	647	1,959
Unvested restricted stock awards and units	23,896	9,936
Convertible senior notes	15,141	—
ESPP shares	667	312