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Reportable Operating Segments (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2015 | Jun. 30, 2014 | Jun. 30, 2015 | Jun. 30, 2014 | Dec. 31, 2014
Segment reporting information |  |  |  |  |
Revenue | $ 483,545 | $ 515,291 | $ 876,325 | $ 985,365 |
% of Revenue | 100.00% | 100.00% | 100.00% | 100.00% |
Gross Profit | $ 46,496 | $ 61,194 | $ 84,501 | $ 110,951 |
% of Segment Revenue | 9.60% | 11.90% | 9.60% | 11.30% |
Goodwill | $ 124,562 |  | $ 124,562 |  | $ 119,410
West |  |  |  |  |
Segment reporting information |  |  |  |  |
Revenue | $ 239,999 | $ 224,391 | $ 426,384 | $ 458,418 |
% of Revenue | 49.60% | 43.50% | 48.70% | 46.50% |
Gross Profit | $ 30,444 | $ 37,809 | $ 51,908 | $ 69,483 |
% of Segment Revenue | 12.70% | 16.80% | 12.20% | 15.20% |
Goodwill | $ 45,239 |  | $ 45,239 |  | 45,239
East |  |  |  |  |
Segment reporting information |  |  |  |  |
Revenue | $ 154,887 | $ 118,554 | $ 278,587 | $ 225,524 |
% of Revenue | 32.00% | 23.00% | 31.80% | 22.90% |
Gross Profit | $ 9,115 | $ 8,727 | $ 18,223 | $ 15,485 |
% of Segment Revenue | 5.90% | 7.40% | 6.50% | 6.90% |
Goodwill | $ 43,267 |  | $ 43,267 |  | 43,267
Energy |  |  |  |  |
Segment reporting information |  |  |  |  |
Revenue | $ 88,659 | $ 172,346 | $ 171,354 | $ 301,423 |
% of Revenue | 18.40% | 33.50% | 19.50% | 30.60% |
Gross Profit | $ 6,937 | $ 14,658 | $ 14,370 | $ 25,983 |
% of Segment Revenue | 7.80% | 8.50% | 8.40% | 8.60% |
Goodwill | $ 36,056 |  | $ 36,056 |  | $ 30,904

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