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Net Income Per Share | 9 Months Ended
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Sep. 30, 2022
Earnings Per Share [Abstract] |
Net Income Per Share | Net Income Per Share Basic net income per share is computed by dividing net income by the weighted-average number of common shares outstanding, while diluted net income per share is computed by dividing net income attributable to common stockholders by the sum of the weighted-average number of common shares outstanding and the weighted-average number of dilutive potential common shares. Dilutive potential common shares relate to our share-based compensation arrangements. The calculation of basic and diluted net income per share is as follows.
Net income per share
|  | Three Months Ended September 30, |  | Nine Months Ended September 30,
(In thousands, except per-share amounts) |  | 2022 |  | 2021 |  | 2022 |  | 2021
Net income—basic and diluted |  | $ | 198,280 |  |  | $ | 126,412 |  |  | $ | 580,604 |  |  | $ | 407,226 |
Average common shares outstanding—basic |  | 162,506 |  |  | 186,741 |  |  | 171,116 |  |  | 191,357 |
Dilutive effect of share-based compensation arrangements |  | 2,232 |  |  | 1,301 |  |  | 2,502 |  |  | 1,545 |
Adjusted average common shares outstanding—diluted |  | 164,738 |  |  | 188,042 |  |  | 173,618 |  |  | 192,902 |
Net income per share |  |  |  |  |  |  |  |
Basic |  | $ | 1.22 |  |  | $ | 0.68 |  |  | $ | 3.39 |  |  | $ | 2.13 |
Diluted |  | $ | 1.20 |  |  | $ | 0.67 |  |  | $ | 3.34 |  |  | $ | 2.11 |

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