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v3.20.2

Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jun. 28, 2020 | Jun. 30, 2019 | Jun. 28, 2020 | Jun. 30, 2019
Revenue | $ 709,771 | $ 825,793 | $ 2,241,527 | $ 2,265,846
Gross profit | 114,397 | 117,987 | 321,134 | 313,141
Selling, general and administrative expenses | (50,822) | (53,146) | (148,299) | (145,016)
Contingent consideration – fair value adjustments | (50) | 0 | 1,521 | (28)
Income from operations | 63,525 | 64,841 | 174,356 | 168,097
Interest expense | (3,564) | (3,546) | (10,412) | (9,607)
Income before income tax expense | 59,961 | 61,295 | 163,944 | 158,490
Income tax expense | (14,458) | (12,044) | (34,710) | (11,263)
Net income | 45,503 | 49,251 | 129,234 | 147,227
Net income attributable to noncontrolling interests | (6) | (18) | (29) | (86)
Net income attributable to Tetra Tech | $ 45,497 | $ 49,233 | $ 129,205 | $ 147,141
Earnings per share attributable to Tetra Tech: |  |  |  |
Basic (in dollars per share) | $ 0.84 | $ 0.90 | $ 2.38 | $ 2.67
Diluted (in dollars per share) | $ 0.83 | $ 0.88 | $ 2.34 | $ 2.63
Weighted-average common shares outstanding: |  |  |  |
Basic (in shares) | 53,985 | 54,819 | 54,366 | 55,101
Diluted (in shares) | 54,692 | 55,768 | 55,161 | 56,034
Subcontractor costs |  |  |  |
Cost of revenue | $ (149,494) | $ (202,597) | $ (482,768) | $ (503,902)
Other costs of revenue |  |  |  |
Cost of revenue | $ (445,880) | $ (505,209) | $ (1,437,625) | $ (1,448,803)

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