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Net Income Per Share | 9 Months Ended
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Sep. 30, 2023
Earnings Per Share [Abstract] |
Net Income Per Share | Net Income Per Share Basic net income per share is computed using the weighted average number of shares of common stock outstanding for the period, excluding unvested RSUs and stock options. Diluted net income per share is based upon the weighted average shares of common stock outstanding for the period plus dilutive potential shares of common stock, including unvested RSUs and stock options using the treasury stock method. The following table sets forth the computation of basic and diluted net income per share for the three and nine months ended September 30, 2023 and 2022 (in thousands):
| Three Months Ended September 30, |  | Nine Months Ended September 30,
| 2023 |  | 2022 |  | 2023 |  | 2022
Net income | $ | 28,419 |  |  | $ | 23,040 |  |  | $ | 111,275 |  |  | $ | 69,057 |
Shares used to compute basic net income per share | 35,912 |  |  | 35,929 |  |  | 35,938 |  |  | 36,117 |
Dilutive potential common shares |  |  |  |  |  |  |
Stock options | 70 |  |  | 120 |  |  | 114 |  |  | 174 |
Unvested restricted stock awards | 99 |  |  | 220 |  |  | 300 |  |  | 390 |
Shares used to compute diluted net income per share | 36,081 |  |  | 36,269 |  |  | 36,352 |  |  | 36,681 |
Basic net income per share | $ | 0.79 |  |  | $ | 0.64 |  |  | $ | 3.10 |  |  | $ | 1.91 |
Diluted net income per share | $ | 0.79 |  |  | $ | 0.64 |  |  | $ | 3.06 |  |  | $ | 1.88 |
Dilutive shares included in the calculation | 663 |  |  | 1,208 |  |  | 1,152 |  |  | 1,150 |
Anti-dilutive shares excluded from the calculation | 1,342 |  |  | 549 |  |  | 857 |  |  | 400 |

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