Stockholders' Equity (Tables)

6 Months Ended

Jun. 30, 2016

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

A summary of RSU activity for the six months ended June 30, 2016, is as follows:



	Number of Shares		Weighted- Average Grant Date Fair Value		Aggregate Intrinsic Value (in thousands)
Unvested—December 31, 2015	6,136,702		$	211.77
Assumed RSUs from acquisition	42,157		114.12
Granted	3,146,105		116.84
Released	(1,375,535	)	191.45
Forfeited	(419,060	)	201.09
Unvested—June 30, 2016	7,530,369		$	175.87	$	1,425,122
Expected to vest as of June 30, 2016	6,574,470				$	1,244,218

Summary of stock option activity

A summary of stock option activity for the six months ended June 30, 2016, is as follows:



	Options Outstanding				Weighted-Average Remaining Contractual Term (in years)	Aggregate Intrinsic Value (in thousands)
	Number of Shares		Weighted-Average Exercise Price
Outstanding—December 31, 2015	2,582,517		$	102.64
Assumed options from acquisition	33,586		11.31
Granted	7,236		109.97
Exercised	(168,102	)	28.51
Forfeited or expired	(18,313	)	183.06
Outstanding—June 30, 2016	2,436,924		$	105.92	5.53	$	229,935
Options vested and expected to vest as of June 30, 2016 ⁽¹⁾	2,377,197		$	103.65	5.47	$	228,429
Options vested and exercisable as of June 30, 2016	1,805,355		$	76.17	4.76	$	213,845

______________________


(1)	Of the options that are vested and expected to vest as of June 30, 2016, 600,476 shares have an exercise price above $196.00 and will be canceled for no payment at the effective time of the Merger. See Note 1, Description of Business and Basis of Presentation, for additional information regarding share conversion details upon consummation of the Merger.

Stock-based compensation related to stock-based awards to employees and nonemployees

The following table presents the amount of stock-based compensation related to stock-based awards to employees recognized in the Company’s condensed consolidated statements of operations during the periods presented (in thousands):



	Three Months Ended June 30,						Six Months Ended June 30,
	2016			2015			2016			2015
Cost of revenue	$	14,773		$	11,946		$	29,242		$	21,703
Sales and marketing	27,684			23,417			56,164			42,758
Product development	71,647			59,847			141,832			109,817
General and administrative	30,839			50,281			63,809			74,322
Total stock-based compensation	144,943			145,491			291,047			248,600
Tax benefit from stock-based compensation	(305		)	(36,479		)	(669		)	(66,583		)
Total stock-based compensation, net of tax effect	$	144,638		$	109,012		$	290,378		$	182,017