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Stock-Based Compensation
3 Months Ended
Mar. 31, 2021
Share-based Payment Arrangement, Noncash Expense [Abstract]  
Stock-Based Compensation Stock-based Compensation
Stock-based compensation is classified in the Condensed Consolidated Statements of Comprehensive Income in the same expense line items as cash compensation. The following table presents the classification of stock-based compensation:
 Three Months Ended March 31,
20212020
 (In thousands)
Cost of revenues$1,609 $1,648 
Sales and marketing907 885 
Research and development1,946 1,676 
General and administrative8,512 7,232 
Total stock-based compensation expense$12,974 $11,441 

The following table presents the nature of the Company’s total stock-based compensation:
 Three Months Ended March 31,
20212020
 (In thousands)
RSUs$9,692 $9,087 
Performance-based RSUs2,590 1,717 
ESPP1,106 1,130 
Capitalization (included in Property and equipment, net)(414)(493)
Total stock-based compensation expense$12,974 $11,441