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Noncontrolling Interests (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2011 | Sep. 30, 2010 | Sep. 30, 2011 | Sep. 30, 2010
Noncontrolling Interests in the Operating Partnership |  |  |  |
Beginning noncontrolling interests in the Operating Partnership |  |  | $ 120,838 | $ 129,769
Adjustments of noncontrolling interests in the Operating Partnership to fair value |  |  | (10,177) | (1,480)
Conversion of Common Units to Common Stock |  |  | (1,344) | (2,958)
Net income attributable to noncontrolling interests in the Operating Partnership | 366 | 366 | 1,496 | 2,819
Distributions to noncontrolling interests in the Operating Partnership |  |  | (4,818) | (4,857)
Total noncontrolling interests in the Operating Partnership | 105,995 | 123,293 | 105,995 | 123,293
Net Income Available for Common Stockholders and Transfers From Noncontrolling Interests in the Operating Partnership. |  |  |  |
Net income available for common stockholders | 7,002 | 6,878 | 27,250 | 52,773
Increase in additional paid in capital from conversion of Common Units to Common Stock | 709 | 0 | 1,344 | 2,957
Change in equity from net income available for common stockholders and conversion of Common Units to Common Stock | $ 7,711 | $ 6,878 | $ 28,594 | $ 55,730
Consolidated joint venture, partner's interest (in hundredths) | 50.00% |  | 50.00% |

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- Definition This element represents the total net income attributable to the parent for the period and the effect of net changes during the period impacting the parent's ownership interest in a subsidiary as it relates to the total (consolidated) equity attributable to the parent. The changes to the parent's ownership interest in a subsidiary represented by this element did not result in a deconsolidation of the subsidiary from the consolidated financial statements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A7 -Appendix A Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4M -URI http://asc.fasb.org/extlink&oid=6922042&loc=SL4591554-111686 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6959260&loc=d3e187085-122770 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph d -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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