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Stock Based Compensation
3 Months Ended
Apr. 01, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
STOCK-BASED COMPENSATION
STOCK-BASED COMPENSATION
Stock-based compensation expense is reflected in Cadence’s condensed consolidated income statements for the three months ended April 1, 2017 and April 2, 2016 as follows:
 
Three Months Ended
 
April 1,
2017
 
April 2,
2016
 
(In thousands)
Cost of product and maintenance
$
529

 
$
464

Cost of services
761

 
681

Marketing and sales
6,008

 
5,536

Research and development
15,482

 
13,897

General and administrative
4,656

 
4,054

Total stock-based compensation expense
$
27,436

 
$
24,632


Cadence had total unrecognized compensation expense related to stock option and restricted stock grants of $201.0 million as of April 1, 2017, which will be recognized over the remaining vesting period. The remaining weighted-average vesting period of unvested awards is 2.2 years.