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STOCK-BASED COMPENSATION (Tables)
3 Months Ended
Mar. 31, 2021
Share-based Payment Arrangement [Abstract]  
Summary of stock based compensation expense
Expense
Three Months Ended
March 31,
(in thousands)20212020
Cost of revenue
$5,925 $5,152 
Selling and marketing
13,720 9,718 
Research and development
6,770 5,496 
General and administrative
3,685 2,809 
$30,100 $23,175 
Income tax benefit
$(5,991)$(4,582)
Summary of stock based compensation award granted
Grants
Three Months Ended
March 31, 2021
(in thousands)SharesTotal Fair Value
RSUs
684 $89,291 
Non-qualified stock options
1,248 $47,380