v2.4.0.6

Segment Information Information By Segment (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended
--- | ---
Mar. 31, 2013 | Mar. 31, 2012
Segment Reporting Information [Line Items] |  |
Revenues | $ 447,536 | $ 571,640
Gross profit | 140,123 | 183,105
Operating Income (Loss) | 2,347 | 39,621
Total other income (expense) | (2,094) | (4,420)
Income Before Income Taxes | 253 | 35,201
Energy Operating Segment [Member] |  |
Segment Reporting Information [Line Items] |  |
Revenues | 312,678 | 437,747
Gross profit | 95,554 | 134,603
Operating Income (Loss) | 480 | 38,164
Water Operating Segment [Member] |  |
Segment Reporting Information [Line Items] |  |
Revenues | 134,858 | 133,893
Gross profit | 44,569 | 48,502
Operating Income (Loss) | 12,575 | 15,937
Corporate Unallocated [Member] |  |
Segment Reporting Information [Line Items] |  |
Operating Income (Loss) | $ (10,708) | $ (14,480)

X
- Definition Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1,2) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 + Details
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- Definition The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.7) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 7 -Article 5 + Details
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