XML 30 R20.htm IDEA: XBRL DOCUMENT v3.21.2
Stock-based Compensation (Tables)
9 Months Ended
Sep. 30, 2021
Share-based Payment Arrangement [Abstract]  
Share-based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity
A summary of the status of the outstanding RSAs as of September 30, 2021 is presented below:
Number of RSA SharesWeighted-Average Grant-Date Fair Value
RSAs at January 1, 202151,561 $50.92 
Granted50,981 53.92 
Vested(36,039)50.57 
Forfeited— — 
RSAs at September 30, 202166,503 $53.41 
A summary of the status of the outstanding RSUs as of September 30, 2021 is presented below:
Number of RSU SharesWeighted-Average Grant-Date Fair Value
RSUs at January 1, 202187,787 $46.62 
Granted31,749  53.96
Performance criteria adjustment12,257  52.96
Vested(38,897) 52.96
Forfeited(1,954) 35.40
RSUs at September 30, 202190,942 $52.71