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v3.20.2

Segment Information (Details) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2020 USD ($) | Sep. 30, 2019 USD ($) | Sep. 30, 2020 USD ($) segment | Sep. 30, 2019 USD ($)
Segment Reporting Information [Line Items] |  |  |  |
Number of reportable segments | segment |  |  | 3 |
Revenues | $ 383,458 | $ 291,699 | $ 1,080,184 | $ 779,734
Operating Income | 28,831 | 12,115 | 73,980 | 28,019
Acquisition related costs | (401) | (1,896) | (1,013) | (2,158)
Heavy Civil |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | 201,078 | 218,894 | 577,141 | 569,635
Operating Income | 2,405 | 7,420 | 2,679 | 11,020
Specialty Services |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | 139,971 | 32,863 | 380,397 | 91,436
Operating Income | 21,474 | 1,371 | 55,834 | 3,284
Residential |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | 42,409 | 39,942 | 122,646 | 118,663
Operating Income | 5,353 | 5,220 | 16,480 | 15,873
Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating Income | $ 29,232 | $ 14,011 | $ 74,993 | $ 30,177

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- Definition This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 23 -URI http://asc.fasb.org/extlink&oid=116868678&loc=d3e1043-128460 + Details
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