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Investments in Joint Ventures (Aggregate Balance Sheet and Statement of Income Data for Unconsolidated Joint Ventures) (Details) (USD $) | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2011 | Jun. 30, 2010 | Jun. 30, 2011 | Jun. 30, 2010 | Dec. 31, 2010
Investments in Joint Ventures |  |  |  |  |  |  |  |  |
Total assets | $ 1,314,900,000 | [1] |  |  | $ 1,314,900,000 | [1] |  |  | $ 935,300,000
Total third-party debt | 1,049,400,000 | [1] |  |  | 1,049,400,000 | [1] |  |  | 810,100,000
Total equity | 240,800,000 | [1] |  |  | 240,800,000 | [1] |  |  | 105,300,000
Total revenues | 36,400,000 |  | 34,500,000 |  | 69,400,000 |  | 68,200,000 |  |
Net loss | (3,800,000) |  | (5,100,000) |  | (6,400,000) |  | (10,200,000) |  |
Equity in income (loss) | $ 16,000 | [2] | $ (436,000) | [2] | $ 390,000 | [2] | $ (541,000) | [2] |
Number of unconsolidated joint ventures ownership interest sold |  |  |  |  | 3 |  |  |  |
Number of multifamily properties acquired by discretionary funds | 12 |  |  |  | 12 |  |  |  |
[1] | During the six months ended June 30, 2011, we sold our ownership interest in three unconsolidated joint ventures and our discretionary funds (the "Funds") acquired twelve multifamily properties.
[2] | Equity in income (loss) excludes our ownership interest of fee income from various property management services with our joint ventures.

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- Definition This item represents the disclosure of summarized financial information for unconsolidated subsidiaries and 50 percent-or-less owned entities accounted for using the equity method of accounting. If investments in common stock of corporate joint ventures or other investments accounted for under the equity method are, in the aggregate, material in relation to the financial position or results of operations of an investor, it may be necessary to present summarized information as to assets of the investee, or group of investments for which combined disclosure is appropriate, either by individual financial statement caption or in groups, as appropriate. Such summarized financial information may, at a minimum, include current and noncurrent assets, the total of which components are represented herein. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph w -Article 1 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph g -Subparagraph 1, 2 -Article 4 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 159 -Paragraph 18 -Subparagraph f Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 18 -Paragraph 20 -Subparagraph d Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph bb -Article 1 + Details
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