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Stock Based Compensation
9 Months Ended
Oct. 01, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
STOCK-BASED COMPENSATION [Text Block]
STOCK-BASED COMPENSATION
Stock-based compensation expense is reflected in Cadence’s condensed consolidated income statements for the three and nine months ended October 1, 2016 and October 3, 2015 as follows:
 
Three Months Ended
 
Nine Months Ended
 
October 1,
2016
 
October 3,
2015
 
October 1,
2016
 
October 3,
2015
 
(In thousands)
Cost of product and maintenance
$
550

 
$
662

 
$
1,461

 
$
1,789

Cost of services
807

 
968

 
2,141

 
2,615

Marketing and sales
6,040

 
5,764

 
16,881

 
16,447

Research and development
18,002

 
12,847

 
46,376

 
35,625

General and administrative
4,599

 
3,876

 
13,127

 
11,205

Total stock-based compensation expense
$
29,998

 
$
24,117

 
$
79,986

 
$
67,681


Cadence had total unrecognized compensation expense related to stock option and restricted stock grants of $229.9 million as of October 1, 2016, which will be recognized over the remaining vesting period. The remaining weighted-average vesting period of unvested awards is 2.5 years.
For information regarding the impact of new accounting standards impacting stock-based compensation, see Note 1 under the heading “New Accounting Standards.”