Stock-Based Compensation and Stockholders' Equity (Tables)

6 Months Ended

Jun. 30, 2020

Share-based Payment Arrangement, Noncash Expense [Abstract]

Schedule of Share-based Compensation, Restricted Stock Units Activity

A summary of the restricted stock units (“RSUs”) activity, including performance awards, for the six months ended June 30, 2020 is presented in the following table:

	Restricted Stock Units
	Units	Weighted- Average Grant Date Fair Value
		(in millions)
Unvested outstanding as of December 31, 2019	1,246,641	$	35.56
Granted (1)	247,357	57.05
Vested	(443,000)	27.10
Forfeited	(11,424)	30.74
Unvested outstanding as of June 30, 2020	1,039,574	44.73

(1)Included are 20,615 RSUs granted to non-employee members of the Board of Directors during the six months ended June 30, 2020.