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Stock-Based Compensation (Tables)
9 Months Ended
Sep. 30, 2019
Share-based Payment Arrangement, Noncash Expense [Abstract]  
Classification Of Stock-Based Compensation The following table presents the classification of stock-based compensation:
 
Three Months Ended
September 30,
 
Nine Months Ended
September 30,
2019
 
2018
 
2019
 
2018
 
(In thousands)
Cost of revenues
$
1,725

 
$
1,755

 
$
5,064

 
$
5,183

Sales and marketing
864

 
1,451

 
2,866

 
4,393

Research and development
1,513

 
1,623

 
4,744

 
5,032

General and administrative
8,518

 
10,301

 
25,563

 
26,798

Total stock-based compensation expense
$
12,620

 
$
15,130

 
$
38,237

 
$
41,406


Nature Of Total Stock-Based Compensation
The following table presents the nature of the Company’s total stock-based compensation:
 
Three Months Ended
September 30,
 
Nine Months Ended
September 30,
 
2019
 
2018
 
2019
 
2018
 
(In thousands)
RSUs
$
10,650

 
$
10,817

 
$
28,318

 
$
29,510

Performance-based RSUs
1,222

 
3,875

 
7,554

 
10,348

ESPP
1,209

 
1,018

 
3,650

 
3,127

Capitalization (included in Property and equipment, net)
(461
)
 
(580
)
 
(1,285
)
 
(1,579
)
Total stock-based compensation expense
$
12,620

 
$
15,130

 
$
38,237

 
$
41,406