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Business Segments (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Dec. 31, 2013
Reportable segment information |  |  |  |  |
Revenues | $ 1,084,510 | $ 1,053,065 | $ 2,039,743 | $ 2,045,993 |
Income from construction operations: |  |  |  |  |
Income from construction operations | 65,443 | 39,474 | 106,940 | 75,553 |
Total | 3,654,523 |  | 3,654,523 |  | 3,397,438
Corporate |  |  |  |  |
Income from construction operations: |  |  |  |  |
Income from construction operations | (12,866) | (10,846) | (25,354) | (22,650) |
Total | 700,356 |  | 700,356 |  | 615,108
Operating segment |  |  |  |  |
Reportable segment information |  |  |  |  |
Revenues | 1,110,435 | 1,084,369 | 2,090,287 | 2,142,704 |
Income from construction operations: |  |  |  |  |
Income from construction operations | 78,309 | 50,320 | 132,294 | 98,203 |
Total | 2,954,167 |  | 2,954,167 |  | 2,782,330
Intersegment elimination |  |  |  |  |
Reportable segment information |  |  |  |  |
Revenues | (25,925) | (31,304) | (50,544) | (96,711) |
Civil |  |  |  |  |
Reportable segment information |  |  |  |  |
Revenues | 390,539 | 346,196 | 755,695 | 600,157 |
Civil | Operating segment |  |  |  |  |
Reportable segment information |  |  |  |  |
Revenues | 398,123 | 356,711 | 774,515 | 661,960 |
Income from construction operations: |  |  |  |  |
Income from construction operations | 58,002 | 31,674 | 102,347 | 54,924 |
Total | 1,499,197 |  | 1,499,197 |  | 1,384,937
Civil | Intersegment elimination |  |  |  |  |
Reportable segment information |  |  |  |  |
Revenues | (7,584) | (10,515) | (18,820) | (61,803) |
Building |  |  |  |  |
Reportable segment information |  |  |  |  |
Revenues | 372,012 | 422,833 | 669,944 | 859,933 |
Building | Operating segment |  |  |  |  |
Reportable segment information |  |  |  |  |
Revenues | 390,353 | 443,622 | 701,668 | 894,831 |
Income from construction operations: |  |  |  |  |
Income from construction operations | 7,674 | 2,661 | 9,497 | 8,008 |
Total | 702,164 |  | 702,164 |  | 663,314
Building | Intersegment elimination |  |  |  |  |
Reportable segment information |  |  |  |  |
Revenues | (18,341) | (20,789) | (31,724) | (34,898) |
Specialty Contractors |  |  |  |  |
Reportable segment information |  |  |  |  |
Revenues | 321,959 | 284,036 | 614,104 | 585,903 |
Specialty Contractors | Operating segment |  |  |  |  |
Reportable segment information |  |  |  |  |
Revenues | 321,959 | 284,036 | 614,104 | 585,913 |
Income from construction operations: |  |  |  |  |
Income from construction operations | 12,633 | 15,985 | 20,450 | 35,271 |
Total | 752,806 |  | 752,806 |  | 734,079
Specialty Contractors | Intersegment elimination |  |  |  |  |
Reportable segment information |  |  |  |  |
Revenues |  |  |  | $ (10) |

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