Stock Plans (Tables)

12 Months Ended

Dec. 31, 2021

Stock Plans

Share-Based Compensation Activity

A summary of the status of the Company’s restricted stock units as of December 31, 2021 and changes during the year ended December 31, 2021, is presented below:

		Weighted
		Average
		Grant-Date
Restricted Stock Units	Shares	Fair Value
Nonvested shares at January 1, 2021	359,903	$	78.41
Granted	336,199		73.96
Vested	(127,419)		68.36
Canceled	(7,467)		80.20
Nonvested shares at December 31, 2021	561,216		78.02