XML 58 R44.htm IDEA: XBRL DOCUMENT v3.21.4
Common Stock (Tables)
 12 Months Ended
Dec. 31, 2021
Share-based Payment Arrangement [Abstract]  
Schedule of stock option activity
A summary of the transactions within the Company’s stock option plans follows (shares in thousands):  
SharesWeighted-Average
Exercise Price
Outstanding at December 31, 202010 61.93 
Granted— — 
Exercised(5)43.56 
Canceled— — 
Outstanding at December 31, 20215 80.47 
Exercisable at December 31, 20215 $80.47 
The following table presents information associated with stock options as of December 31, 2021 and 2020, and for the years ended December 31, 2021, 2020 and 2019. No stock options were granted during any of the years presented below.
202120202019
Intrinsic value of options outstanding as of December 31$1 $2 
Intrinsic value of options exercisable as of December 311 2 
Intrinsic value of options exercised1 3 45 
Summary of restricted stock units activity A summary of RSUs granted follows (RSUs in thousands):
Year Ended December 31,  
202120202019
RSUs granted348 643 456 
Weighted-average grant date price per unit$297.02 $140.99 $124.37 
A summary of RSU activity for the year ended December 31, 2021 follows (RSUs in thousands):  
Stock UnitsWeighted-Average
Grant Date Fair Value
Nonvested as of December 31, 2020517 $164.62 
Granted348 297.02 
Vested(422)222.64 
Forfeited(25)183.00 
Nonvested as of December 31, 2021418 $215.23