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Stock Based Compensation
 6 Months Ended
Jul. 02, 2022
Share-based Payment Arrangement [Abstract]  
STOCK-BASED COMPENSATION STOCK-BASED COMPENSATION
Stock-based compensation expense is reflected in Cadence’s condensed consolidated income statements for the three and six months ended July 2, 2022 and July 3, 2021 as follows:
Three Months Ended Six Months Ended
July 2,
2022		July 3,
2021		July 2,
2022		July 3,
2021
(In thousands)
Cost of product and maintenance$875 $909 $1,705 $1,716 
Cost of services1,113 992 2,163 2,019 
Marketing and sales12,902 10,294 24,659 21,500 
Research and development37,067 31,286 72,189 64,144 
General and administrative12,313 7,037 23,023 13,735 
Total stock-based compensation expense$64,270 $50,518 $123,739 $103,114 
Cadence had total unrecognized compensation expense related to stock option and restricted stock grants of $408.7 million as of July 2, 2022, which will be recognized over the remaining vesting period. The remaining weighted average vesting period of unvested awards is 2.3 years.