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Income Taxes - Components of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023
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Income Tax Disclosure [Abstract] |  |
Project and non-project reserves | $ 23,184 | $ 23,555
Employee compensation and benefits | 76,944 | 69,726
Revenue and cost recognition | 46,250 | 37,616
Insurance accruals | 12,424 | 14,081
Net operating losses | 17,640 | 8,663
Lease liabilities | 42,572 | 44,626
Tax credit carryforwards | 35,845 | 31,727
Other | 17,432 | 3,285
Total deferred tax assets | 272,291 | 233,279
Valuation allowance | (45,318) | (34,779)
Total deferred tax assets | 226,973 | 198,500
Deferred tax liabilities |  |
Intangible assets | (57,361) | (18,783)
Right-of-use assets | (38,605) | (40,131)
Profit remittance tax | (6,842) | (5,822)
Other | (1,758) | (3,378)
Total deferred tax liabilities | (104,566) | (68,114)
Net deferred tax asset | $ 122,407 | $ 130,386

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