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Equity Awards (Tables)
3 Months Ended
Mar. 31, 2022
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, 2021 and 2022 (in thousands):
For the three months ended March 31,
20212022
Instructional and support costs$1,225 $1,607 
General and administration2,675 3,461 
Stock-based compensation expense included in operating expense3,900 5,068 
Tax benefit1,000 1,334 
Stock-based compensation expense, net of tax$2,900 $3,734