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STOCK AWARD PLANS (Tables) | 3 Months Ended
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Mar. 31, 2022
Share-based Payment Arrangement [Abstract] |
Schedule of Stock-based Compensation | A summary of our total compensation expense recognized in our condensed consolidated statements of operations and comprehensive income for stock-based compensation is as follows (in thousands):
| Three Months Ended March 31, |  |
| 2022 |  | 2021 |  |  |  |
Stock options | $ | 3,219 |  |  | $ | 3,967 |  |  |  |  |
Stock awards | 20,063 |  |  | 18,948 |  |  |  |  |
Company expense on ESPP discount | 1,324 |  |  | 1,074 |  |  |  |  |
Total stock-based compensation expense | $ | 24,606 |  |  | $ | 23,989 |  |  |  |  |
Schedule Employee Stock Purchase Plan Activity | The following is a summary of the employee stock purchase plan activity (dollars in thousands):
Three Months Ended March 31, 2022
Shares purchased by employees |  | Aggregate cost to employees |  | Expense recognized by the company
81,951 |  |  | $ | 7,503 |  |  | $ | 1,324 |

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