Stock Based Compensation

9 Months Ended

Sep. 29, 2018

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Stock-based compensation expense is reflected in Cadence’s condensed consolidated income statements for the three and nine months ended September 29, 2018 and September 30, 2017 as follows:



	Three Months Ended				Nine Months Ended
	September 29, 2018		September 30, 2017		September 29, 2018		September 30, 2017
	(In thousands)
Cost of product and maintenance	$	736	$	612	$	1,932	$	1,632
Cost of services	1,078		895		2,825		2,373
Marketing and sales	9,528		7,422		25,410		19,667
Research and development	28,668		21,792		77,003		55,288
General and administrative	6,254		5,369		17,951		15,048
Total stock-based compensation expense	$	46,264	$	36,090	$	125,121	$	94,008

Cadence had total unrecognized compensation expense related to stock option and restricted stock grants of $305.6 million as of September 29, 2018, which will be recognized over the remaining vesting period. The remaining weighted-average vesting period of unvested awards is 2.1 years.