Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
Dec. 29, 2024	Dec. 31, 2023
Revenue	$ 1,420,561	$ 1,228,267
Gross profit	221,477	190,498
Selling, general and administrative expenses	(83,951)	(79,417)
Legal contingency costs	(115,000)	0
Income from operations	22,526	111,081
Interest expense, net	(7,218)	(9,577)
Income before income tax expense	15,308	101,504
Income tax expense	(14,530)	(26,524)
Net income	778	74,980
Net income attributable to noncontrolling interests	(31)	(8)
Net income attributable to Tetra Tech, basic	747	74,972
Net income attributable to Tetra Tech, diluted	$ 747	$ 74,972
Earnings per share attributable to Tetra Tech:
Basic (in dollars per share)	$ 0	$ 0.28
Diluted (in dollars per share)	$ 0	$ 0.28
Weighted-average common shares outstanding:
Basic (in shares)	267,854	266,585
Diluted (in shares)	271,886	268,690
Subcontractor costs
Cost of revenue	$ (223,231)	$ (213,098)
Other costs of revenue
Cost of revenue	$ (975,853)	$ (824,671)

The aggregate amount is comprised primarily of marketing and bid and proposal costs, and corporate headquarters' costs related to the executives offices, finance, accounting, administration and information technology, including non-contract related portion of stock-based compensation, depreciation of property and equipment and amortization of identifiable intangible assets.

No definition available.