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Consolidated Statements of Income - USD ($)
shares in Thousands
12 Months Ended
Sep. 29, 2019
Sep. 30, 2018
Oct. 01, 2017
Revenue $ 3,107,348,000 $ 2,964,148,000 $ 2,753,360,000
Gross profit 408,183,000 384,458,000 353,638,000
Selling, general and administrative expenses (200,230,000) (190,120,000) (177,219,000)
Acquisition and integration expenses (10,351,000) 0 0
Contingent consideration – fair value adjustments (1,085,000) (4,252,000) 6,923,000
Impairment of goodwill (7,755,000) 0 0
Income from operations 188,762,000 190,086,000 183,342,000
Interest income 1,732,000 1,824,000 729,000
Interest expense (15,358,000) (17,348,000) (12,310,000)
Income before income tax expense 175,136,000 174,562,000 171,761,000
Income tax expense (16,375,000) (37,605,000) (53,844,000)
Net income 158,761,000 136,957,000 117,917,000
Net income attributable to noncontrolling interests (93,000) (74,000) (43,000)
Net income attributable to Tetra Tech $ 158,668,000 $ 136,883,000 $ 117,874,000
Earnings per share attributable to Tetra Tech:      
Basic (in dollars per share) $ 2.89 $ 2.46 $ 2.07
Diluted (in dollars per share) $ 2.84 $ 2.42 $ 2.04
Weighted-average common shares outstanding:      
Basic (in shares) 54,986 55,670 56,911
Diluted (in shares) 55,936 56,598 57,913
Subcontractor costs      
Costs of revenue $ (717,711,000) $ (763,414,000) $ (719,350,000)
Other costs of revenue      
Costs of revenue $ (1,981,454,000) $ (1,816,276,000) $ (1,680,372,000)