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v3.20.2

Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019
Income Statement [Abstract] |  |  |  |
Revenues | $ 400,038 | $ 264,086 | $ 696,726 | $ 488,035
Cost of revenues | (340,439) | (238,590) | (601,882) | (443,036)
Gross profit | 59,599 | 25,496 | 94,844 | 44,999
General and administrative expense | (18,451) | (10,174) | (36,055) | (22,063)
Intangible asset amortization | (2,866) | (600) | (5,703) | (1,200)
Acquisition related costs | (139) | (262) | (612) | (262)
Other operating expense, net | (5,097) | (3,276) | (7,325) | (5,570)
Operating income | 33,046 | 11,184 | 45,149 | 15,904
Interest income | 24 | 291 | 123 | 655
Interest expense | (7,557) | (2,904) | (15,360) | (5,964)
Income before income taxes | 25,513 | 8,571 | 29,912 | 10,595
Income tax expense | (7,248) | (706) | (8,432) | (869)
Net income | 18,265 | 7,865 | 21,480 | 9,726
Less: Net income attributable to noncontrolling interests | (55) | (37) | (155) | (83)
Net income attributable to Sterling common stockholders | $ 18,210 | $ 7,828 | $ 21,325 | $ 9,643
Net income per share attributable to Sterling common stockholders: |  |  |  |
Basic (in dollars per share) | $ 0.65 | $ 0.30 | $ 0.77 | $ 0.37
Diluted (in dollars per share) | $ 0.65 | $ 0.29 | $ 0.76 | $ 0.36
Weighted average common shares outstanding: |  |  |  |
Basic (in shares) | 27,941 | 26,338 | 27,794 | 26,357
Diluted (in shares) | 27,957 | 26,623 | 27,887 | 26,657

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