Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2021

Share-based Payment Arrangement [Abstract]

Stock-Based Compensation Expense and Its Net Impact on Basic and Diluted Earnings Per Share

Total stock-based compensation expense and its net impact on basic and diluted earnings per share are as follows:

	Three Months Ended				Six Months Ended
(in thousands, except per share data)	June 30, 2021		June 30, 2020		June 30, 2021		June 30, 2020
Cost of sales:
Maintenance and service	$	3,519	$	3,464	$	7,081	$	6,330
Operating expenses:
Selling, general and administrative	23,515		16,319		40,738		31,463
Research and development	15,851		14,347		30,185		27,278
Stock-based compensation expense before taxes	42,885		34,130		78,004		65,071
Related income tax benefits	(8,783)		(10,883)		(51,408)		(36,789)
Stock-based compensation expense, net of taxes	$	34,102	$	23,247	$	26,596	$	28,282
Net impact on earnings per share:
Basic earnings per share	$	(0.39)	$	(0.27)	$	(0.31)	$	(0.33)
Diluted earnings per share	$	(0.39)	$	(0.27)	$	(0.30)	$	(0.32)