Stock Based Compensation (Tables)

9 Months Ended

Sep. 30, 2017

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

Stock-based compensation expense and allocation by cost [Table Text Block]

Stock-based compensation expense is reflected in Cadence’s condensed consolidated income statements for the three and nine months ended September 30, 2017 and October 1, 2016 as follows:

	Three Months Ended				Nine Months Ended
	September 30, 2017		October 1, 2016		September 30, 2017		October 1, 2016
	(In thousands)
Cost of product and maintenance	$	612	$	550	$	1,632	$	1,461
Cost of services	895		807		2,373		2,141
Marketing and sales	7,422		6,040		19,667		16,881
Research and development	21,792		18,002		55,288		46,376
General and administrative	5,369		4,599		15,048		13,127
Total stock-based compensation expense	$	36,090	$	29,998	$	94,008	$	79,986