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Equity Awards (Tables) | 3 Months Ended
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Mar. 31, 2019
Disclosure of Compensation Related Costs, Share-based Payments [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, 2018 and 2019 (in thousands):
| For the three months ended March 31,
| 2018 |  | 2019
Instructional and support costs | $ | 620 |  |  | $ | 858 |
General and administration | 2,068 |  |  | 1,673 |
Merger and integration costs | — |  |  | 479 |
Stock-based compensation expense included in operating expense | 2,688 |  |  | 3,010 |
Tax benefit | 752 |  |  | 759 |
Stock-based compensation expense, net of tax | $ | 1,936 |  |  | $ | 2,251 |

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