Equity Award Plans (Tables)

3 Months Ended

Mar. 31, 2016

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Summary of the Activity for Stock Option Changes and Summary of Information Related to Options Vested and Expected to Vest and Options Exercisable

A summary of the activity for our stock option changes during the reporting period and a summary of information related to options vested and options exercisable are presented below (in thousands, except per share amounts and contractual life years):

	Options Outstanding
	Number of Shares		Weighted- Average Exercise Price		Weighted- Average Grant Date Fair Value (per share)		Weighted- Average Contractual Life (years)	Aggregate Intrinsic Value
Balance — December 31, 2015	11,494		$	10.67			6.9	$	149,157
Granted	—		—		$	—
Exercised	(601	)	4.73					7,063
Cancelled	(266	)	16.99
Balance — March 31, 2016	10,627		$	10.84			6.5	$	110,382
Options exercisable — March 31, 2016	7,466		$	9.28			6.2	$	84,211

Summary of Activity for Restricted Common Stock, RSAs and RSUs and Summary of Information Related to Unvested Restricted Common Stock, RSAs and RSUs and those Expected to Vest

A summary of the activity for our restricted common stock, RSAs and RSUs during the reporting period and a summary of information related to unvested restricted common stock, RSAs and RSUs and those expected to vest based on the achievement of a performance condition are presented below (in thousands, except per share amounts and contractual life years):

	Number of Shares		Weighted- Average Grant Date Fair Value (per share)		Weighted- Average Contractual Life (years)	Aggregate Intrinsic Value
Unvested balance — December 31, 2015	20,054		$	33.68	1.6	$	415,912
Granted	6,496		12.56
Vested	(1,475	)	40.45
Cancelled	(1,179	)	34.29
Unvested balance — March 31, 2016	23,896		$	26.82	1.6	$	429,886
Unvested awards for which the requisite service period has not been rendered but that are expected to vest based on the achievement of a performance condition — March 31, 2016	7,030		$	21.49	1.6	$	126,465

Schedule of Stock-Based Compensation Expense Related to Stock Options, ESPP and Restricted Stock Units and Awards

Stock-based compensation expense related to stock options, ESPP and restricted stock units and awards is included in the condensed consolidated statements of operations as follows (in thousands):

	Three Months Ended March 31,
	2016		2015
Cost of product revenue	$	667	$	268
Cost of subscription and services revenue	9,601		6,378
Research and development	24,430		16,035
Sales and marketing	16,154		16,454
General and administrative	13,215		10,740
Total	$	64,067	$	49,875