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Quarterly Financial Data - Unaudited (Tables) | 12 Months Ended
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Dec. 31, 2011
Quarterly Financial Data - Unaudited [Abstract] |
Results Of Operations |
|  |  | September 30, |  |  |  | September 30, |  |  |  | September 30, |  |  |  | September 30, |
|  | 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 | )
|  |  | September 30, |  |  |  | September 30, |  |  |  | September 30, |  |  |  | September 30, |
|  | For the Year Ended December 31, 2010: |
|  | First Quarter |  |  | Second Quarter |  |  | Third Quarter |  |  | Fourth Quarter |
|  | (In thousands) |
Revenues |  | $ | 20,068 |  |  | $ | 26,734 |  |  | $ | 32,978 |  |  | $ | 49,147 |
Operating income (loss) |  |  | (2,479 | ) |  |  | 648 |  |  |  | 10,831 |  |  |  | 12,993 |
Net income (loss)(1) |  |  | (3,231 | ) |  |  | (26,350 | ) |  |  | (1,701 | ) |  |  | 1,587 |
(1) | In connection with the closing of the Company's IPO, it merged into a corporation and became subject to federal and state entity-level taxation. At June 30, 2010, the Company recorded an estimated net deferred tax expense of $29.2 million to recognize a deferred tax liability for the initial book and tax basis differences. At September 30, 2010, the Company recorded an additional $6.2 million discrete deferred tax expense for changes in estimates on its initial deferred tax liability recorded in June. See Note 11.

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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 -Topic 270 -SubTopic 10 -Publisher FASB -Number -Article -Subparagraph (a)-(j) -Name Accounting Standards Codification -Paragraph 1 -Section 50 -URI http://asc.fasb.org/extlink&oid=6952194&loc=d3e1280-108306 + Details
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