Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2020

Share-based Payment Arrangement, Noncash Expense [Abstract]

Summary of RSUs Under the Long-Term Incentive Plans

A summary of the Company’s RSUs under the Company’s long-term incentive plans as of December 31, 2020, and changes during the year then ended is presented as follows:

	Shares	Weighted average grant date fair value		Weighted average remaining contractual term (years)	Aggregate intrinsic value
Restricted Stock Units outstanding, December 31, 2019	362	$	158.13
Granted	192	120.36
Released	(146)	203.05
Forfeited	(33)	140.69
Restricted Stock Units outstanding, December 31, 2020	375	$	122.84	1.4	$	52,822
Expected to vest as of December 31, 2020	361			1.4	$	50,895

Additional Information for RSUs Under the Long-Term Incentive Plans

Additional information relating to the Company’s RSUs under the Company’s long-term incentive plans are as follows:

	2020	2019	2018
Restricted Stock Units outstanding, January 1	362	446	555
Granted	192	187	136
Released	(146)	(230)	(235)
Forfeited	(33)	(41)	(10)
Restricted Stock Units outstanding, December 31	375	362	446
Expected to vest as of December 31	361	356	440