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Quarterly Financial Data (Tables) | 12 Months Ended
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Dec. 31, 2012
Results of Operations | The Company’s results of operations by quarter for the years ended December 31, 2012 and 2011 are as follows:
|  | For the Year Ended December 31, 2012: |
|  | First Quarter |  |  | Second Quarter |  |  | Third Quarter |  |  | Fourth Quarter |
|  | (In thousands) |
Revenues |  | $ | 138,566 |  |  | $ | 149,063 |  |  | $ | 184,710 |  |  | $ | 214,327 |
Operating income |  |  | 58,152 |  |  |  | 60,184 |  |  |  | 72,038 |  |  |  | 86,619 |
Net income |  |  | 16,442 |  |  |  | 76,041 |  |  |  | 18,314 |  |  |  | 42,591 |
|  | For the Year Ended December 31, 2011: |
|  | First Quarter |  |  | Second Quarter |  |  | Third Quarter |  |  | Fourth Quarter |
|  | (In thousands) |
Revenues |  | $ | 58,744 |  |  | $ | 67,206 |  |  | $ | 87,596 |  |  | $ | 116,876 |
Operating income |  |  | 25,544 |  |  |  | 32,414 |  |  |  | 40,273 |  |  |  | 54,336 |
Net income (loss) |  |  | (6,847 | ) |  |  | 33,349 |  |  |  | 66,289 |  |  |  | (13,401 | )

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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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