Acquisitions - Pro Forma Financial Information (Details) - Kenny Seng Construction - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
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Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
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| Business Combination, Pro Forma Information [Line Items] | ||||
| Revenue | $ 1,471,714 | $ 1,167,402 | $ 2,410,248 | $ 1,891,798 |
| Net income attributable to Granite Construction Incorporated | $ (289,847) | $ 74,336 | $ (328,023) | $ 36,921 |
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- Definition Amount of pro forma revenue of combined entity as if acquisition date of business combination occurred as of beginning of period. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Details
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