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Earnings Per Share | 3 Months Ended
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Mar. 31, 2022
Earnings Per Share [Abstract] |
Earnings Per Share | 9. Earnings Per Share The following table sets forth the computations of basic and diluted earnings per share:
| Three months ended
| March 31,
| 2022 |  | 2021
Net income | $ | 158,294 |  | $ | 127,101
Shares: |  |  |  |  |
Weighted-average number of common shares outstanding (for basic calculation) |  | 28,043 |  |  | 28,125
Dilutive stock awards |  | 258 |  |  | 457
Weighted-average number of common shares outstanding (for diluted calculation) |  | 28,301 |  |  | 28,582
Basic earnings per share | $ | 5.64 |  | $ | 4.52
Diluted earnings per share | $ | 5.59 |  | $ | 4.45
The following stock awards were excluded from the calculation of diluted earnings per share:
| Three months ended
| March 31,
| 2022 |  | 2021
Stock awards subject to performance conditions |  | 55 |  |  | 69
Stock awards that were antidilutive |  | 142 |  |  | 48
Total stock awards excluded from diluted earnings per share |  | 197 |  |  | 117

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