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QUARTERLY FINANCIAL DATA (Tables) | 12 Months Ended
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Dec. 31, 2012
Consolidated Operating Results by Quarter | The table below sets forth the unaudited consolidated operating results by quarter for the years ended December 31, 2012 and 2011 (in thousands, except per share information).
|  | For the Three Months Ended |
|  | March 31, |  |  | June 30, |  |  | September 30, |  |  | December 31, |
2012: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  | $ | 1,328,764 |  |  | $ | 1,386,162 |  |  | $ | 1,532,001 |  |  | $ | 1,673,342 |
Gross profit |  |  | 186,064 |  |  |  | 212,904 |  |  |  | 252,000 |  |  |  | 286,739 |
Net income |  |  | 49,994 |  |  |  | 69,797 |  |  |  | 100,856 |  |  |  | 102,009 |
Net income attributable to common stock |  |  | 45,707 |  |  |  | 65,538 |  |  |  | 96,398 |  |  |  | 98,986 |
Net income from continuing operations attributable to common stock |  |  | 45,798 |  |  |  | 57,918 |  |  |  | 83,628 |  |  |  | 102,350 |
Basic earnings per share from continuing operations attributable to common stock |  | $ | 0.22 |  |  | $ | 0.27 |  |  | $ | 0.39 |  |  | $ | 0.48 |
Diluted earnings per share from continuing operations attributable to common stock |  | $ | 0.22 |  |  | $ | 0.27 |  |  | $ | 0.39 |  |  | $ | 0.48 |
2011: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  | $ | 783,305 |  |  | $ | 904,781 |  |  | $ | 1,112,674 |  |  | $ | 1,393,004 |
Gross profit |  |  | 69,575 |  |  |  | 140,795 |  |  |  | 172,055 |  |  |  | 179,291 |
Net income (loss) |  |  | (16,305 | ) |  |  | 34,313 |  |  |  | 55,600 |  |  |  | 70,808 |
Net income (loss) attributable to common stock |  |  | (17,594 | ) |  |  | 31,801 |  |  |  | 51,994 |  |  |  | 66,314 |
Net income (loss) from continuing operations attributable to common stock |  |  | (13,134 | ) |  |  | 28,674 |  |  |  | 44,256 |  |  |  | 58,715 |
Basic earnings (loss) per share from continuing operations attributable to common stock |  | $ | (0.06 | ) |  | $ | 0.13 |  |  | $ | 0.21 |  |  | $ | 0.28 |
Diluted earnings (loss) per share from continuing operations attributable to common stock |  | $ | (0.06 | ) |  | $ | 0.13 |  |  | $ | 0.21 |  |  | $ | 0.28 |

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- Definition Tabular disclosure of the quarterly financial data in the annual financial statements. The disclosure includes financial information for each fiscal quarter for the current and previous year, including revenues, gross profit, income (loss) before extraordinary items and cumulative effect of a change in accounting principle and earnings per share data. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a)-(j) -URI http://asc.fasb.org/extlink&oid=20225539&loc=d3e1280-108306 + Details
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