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Quarterly Financial Data (Unaudited): (Tables) | 12 Months Ended
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Dec. 31, 2011
Quarterly Financial Data (Unaudited): |
Summary of quarterly results of operations |
|  | 2011 Quarter Ended |  | 2010 Quarter Ended |
--- | --- | --- | --- | --- | ---
|  | Dec 31 |  | Sep 30 |  | Jun 30 |  | Mar 31 |  | Dec 31 |  | Sep 30 |  | Jun 30 |  | Mar 31 |
Revenues(1) |  | $ | 215,315 |  | $ | 202,683 |  | $ | 190,940 |  | $ | 191,069 |  | $ | 200,334 |  | $ | 189,471 |  | $ | 181,226 |  | $ | 182,114 |
Net income (loss) available to common stockholders(2) |  | $ | 163,107 |  | $ | 12,941 |  | $ | (19,216 | ) | $ | 34 |  | $ | 23,558 |  | $ | 8,429 |  | $ | (440 | ) | $ | (6,357 | )
Net income (loss) available to common stockholders per share-basic |  | $ | 1.23 |  | $ | 0.10 |  | $ | (0.15 | ) | $ | — |  | $ | 0.18 |  | $ | 0.06 |  | $ | (0.01 | ) | $ | (0.08 | )
Net income (loss) available to common stockholders per share-diluted |  | $ | 1.23 |  | $ | 0.10 |  | $ | (0.15 | ) | $ | — |  | $ | 0.18 |  | $ | 0.06 |  | $ | (0.01 | ) | $ | (0.08 | )
(1) Revenues as reported on the Company's Quarterly Reports on Form 10-Q have been reclassified to reflect adjustments for discontinued operations. (2) Net income available to common stockholders for the quarter ended December 31, 2011 includes a gain of $188,264 from the SDG Transaction (See Note 4—Investments in Unconsolidated Joint Ventures) and an impairment loss of $45,458 related to the reduction of the expected holding period of certain long-lived assets (See Note 6—Property).

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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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