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Equity Awards (Tables)
3 Months Ended
Mar. 31, 2021
Share-based Payment Arrangement [Abstract]  
Schedule of stock-based compensation expense
The following table sets forth the amount of stock-based compensation expense recorded in each of the expense line items for the three months ended March 31, 2020 and 2021 (in thousands):
For the three months ended March 31,
20202021
Instructional and support costs$1,030 $1,225 
General and administration1,995 2,675 
Stock-based compensation expense included in operating expense3,025 3,900 
Tax benefit777 1,000 
Stock-based compensation expense, net of tax$2,248 $2,900