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Earnings per Share | 12 Months Ended
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Oct. 02, 2022
Earnings Per Share [Abstract] |
Earnings per Share | Earnings per Share The following table sets forth the number of weighted-average shares used to compute basic and diluted EPS:
| Fiscal Year Ended
| October 2, 2022 |  | October 3, 2021 |  | September 27, 2020
| (in thousands, except per share data)
Net income attributable to Tetra Tech | $ | 263,125 |  |  | $ | 232,810 |  |  | $ | 173,859 |
Weighted-average common shares outstanding – basic | 53,620 |  |  | 54,078 |  |  | 54,235 |
Effect of diluted stock options and unvested restricted stock | 543 |  |  | 597 |  |  | 787 |
Weighted-average common stock outstanding – diluted | 54,163 |  |  | 54,675 |  |  | 55,022 |
Earnings per share attributable to Tetra Tech: |  |  |  |  |
Basic | $ | 4.91 |  |  | $ | 4.31 |  |  | $ | 3.21 |
Diluted | $ | 4.86 |  |  | $ | 4.26 |  |  | $ | 3.16 |
For fisc al 2022, 2021 and 2020, no options were excluded from the calculation of dilutive potential common shares.

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