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v3.20.4

Segment Information (Details) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2020 USD ($) | Sep. 30, 2020 USD ($) | Jun. 30, 2020 USD ($) | Mar. 31, 2020 USD ($) | Dec. 31, 2019 USD ($) | Sep. 30, 2019 USD ($) | Jun. 30, 2019 USD ($) | Mar. 31, 2019 USD ($) | Dec. 31, 2020 USD ($) segment | Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($)
Segment Information |  |  |  |  |  |  |  |  |  |  |
Number of reportable segments | segment |  |  |  |  |  |  |  |  | 2 |  |
Revenue | $ 698,961 | $ 714,099 | $ 743,468 | $ 700,131 | $ 719,584 | $ 706,918 | $ 650,302 | $ 538,473 | $ 2,856,659 | $ 2,615,277 | $ 2,182,879
Gross Profit | 136,999 | $ 147,196 | $ 145,695 | $ 117,093 | 132,560 | $ 142,702 | $ 120,016 | $ 106,665 | 546,983 | 501,943 | 446,279
Capital Expenditures |  |  |  |  |  |  |  |  | 24,131 | 31,750 | 27,268
Total Assets | 1,757,355 |  |  |  | 1,505,012 |  |  |  | 1,757,355 | 1,505,012 |
Operating | Mechanical Services |  |  |  |  |  |  |  |  |  |  |
Segment Information |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 2,413,016 | 2,251,560 | 2,176,223
Gross Profit |  |  |  |  |  |  |  |  | 509,740 | 465,144 | 444,960
Capital Expenditures |  |  |  |  |  |  |  |  | 22,550 | 27,933 | 25,945
Total Assets | 1,215,985 |  |  |  | 1,056,609 |  |  |  | 1,215,985 | 1,056,609 |
Operating | Electrical Services |  |  |  |  |  |  |  |  |  |  |
Segment Information |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 443,643 | 363,717 | 6,656
Gross Profit |  |  |  |  |  |  |  |  | 37,243 | 36,799 | 1,319
Capital Expenditures |  |  |  |  |  |  |  |  | 955 | 1,504 | 57
Total Assets | 449,588 |  |  |  | 372,254 |  |  |  | 449,588 | 372,254 |
Corporate & Eliminations |  |  |  |  |  |  |  |  |  |  |
Segment Information |  |  |  |  |  |  |  |  |  |  |
Capital Expenditures |  |  |  |  |  |  |  |  | 626 | 2,313 | $ 1,266
Total Assets | $ 91,782 |  |  |  | $ 76,149 |  |  |  | $ 91,782 | $ 76,149 |

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