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Revenue From Customers (Tables) | 3 Months Ended
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Mar. 31, 2021
Revenue from Contract with Customer [Abstract] |
Schedule of Backlog By Segment | The following table presents the Company’s backlog, by segment:
| March 31, 2021 |  | December 31, 2020
Heavy Civil Backlog | $ | 1,261,461 |  |  | $ | 898,183 |
Specialty Services Backlog | 377,761 |  |  | 277,205 |
Total Heavy Civil and Specialty Services Backlog | $ | 1,639,222 |  |  | $ | 1,175,388 |
Disaggregation of Revenue | The following tables present the Company’s revenue disaggregated by major end market and contract type:
| Three Months Ended March 31, |  |  |  |
Revenues by major end market | 2021 |  | 2020 |  |  |  |  |  |  |  |  |  |
Heavy Highway | $ | 99,516 |  |  | $ | 96,374 |  |  |  |  |  |  |  |  |  |  |
Aviation | 27,222 |  |  | 28,457 |  |  |  |  |  |  |  |  |  |  |
Water Containment and Treatment | 14,219 |  |  | 21,809 |  |  |  |  |  |  |  |  |  |  |
Other | 6,097 |  |  | 8,975 |  |  |  |  |  |  |  |  |  |  |
Heavy Civil Revenues | 147,054 |  |  | 155,615 |  |  |  |  |  |  |  |  |  |  |
Land Development | 96,572 |  |  | 76,245 |  |  |  |  |  |  |  |  |  |  |
Commercial | 27,516 |  |  | 28,478 |  |  |  |  |  |  |  |  |  |  |
Specialty Services Revenues | 124,088 |  |  | 104,723 |  |  |  |  |  |  |  |  |  |  |
Residential Revenues | 44,174 |  |  | 36,350 |  |  |  |  |  |  |  |  |  |  |
Total Revenues | $ | 315,316 |  |  | $ | 296,688 |  |  |  |  |  |  |  |  |  |  |
Revenues by contract type |  |  |  |  |  |  |  |  |  |  |  |  |
Fixed-Unit Price | $ | 177,547 |  |  | $ | 141,739 |  |  |  |  |  |  |  |  |  |  |
Lump Sum | 91,155 |  |  | 114,252 |  |  |  |  |  |  |  |  |  |  |
Residential and Other | 46,614 |  |  | 40,697 |  |  |  |  |  |  |  |  |  |  |
Total Revenues | $ | 315,316 |  |  | $ | 296,688 |  |  |  |  |  |  |  |  |  |  |

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