Equity Awards (Tables)

9 Months Ended

Sep. 30, 2020

Share-based Payment Arrangement [Abstract]

Schedule of Stock Option Activity

A summary of stock option activity for the nine months ended September 30, 2020 was as follows:

	Number of Shares	Weighted- Average Exercise Price Per Share		Weighted- Average Remaining Contractual Term	Aggregate Intrinsic Value
	(in thousands)			(in years)	(in thousands)
Outstanding at December 31, 2019	1,154	$	77.70
Exercised	(149)	$	28.47		$	44,465
Canceled	(11)	$	75.77
Outstanding at March 31, 2020	994	$	85.08
Exercised	(343)	$	70.33		$	95,041
Outstanding at June 30, 2020	651	$	92.87
Exercised	(46)	$	25.03		$	20,233
Outstanding at September 30, 2020	604	$	98.16	4.6	$	233,515
Vested and expected to vest as of September 30, 2020	580	$	91.47	4.4	$	228,345
Vested and exercisable as of September 30, 2020	425	$	34.83	2.7	$	191,110

Schedule of Restricted Stock Unit Activity

A summary of RSU activity for the nine months ended September 30, 2020 was as follows:

	Number of Shares	Weighted-Average Grant-Date Fair Value Per Share		Aggregate Intrinsic Value
	(in thousands)			(in thousands)
Outstanding at December 31, 2019	8,733	$	185.39
Granted	2,810	$	352.87
Vested	(1,183)	$	151.19	$	411,813
Forfeited	(278)	$	199.48
Outstanding at March 31, 2020	10,082	$	235.99
Granted	398	$	341.10
Vested	(1,061)	$	185.99	$	394,458
Forfeited	(219)	$	213.34
Outstanding at June 30, 2020	9,200	$	246.89
Granted	283	$	439.98
Vested	(1,007)	$	194.61	$	436,885
Forfeited	(120)	$	242.32
Outstanding at September 30, 2020	8,356	$	260.60	$	4,052,833