Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2021

Share-based Payment Arrangement [Abstract]

Summary of Stock Based Compensation Activity Related to Nonvested RSUs

The following table summarizes activity related to nonvested RSUs:

	Number of RSUs (In thousands)	Weighted Average Grant-Date Fair Value Per Share
Nonvested at December 31, 2020	733	$	348.60
Granted	612	341.76
Vested	(500)	345.73
Forfeited	(35)	344.81
Nonvested at December 31, 2021	810	$	345.37