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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 | 12 Months Ended
--- | --- | ---
Mar. 31, 2014 | Mar. 31, 2013 | Dec. 31, 2013
Investments In Joint Ventures [Abstract] |  |  |  |  |  |
Total assets | $ 739,200,000 | [1] |  |  | $ 790,200,000 | [1]
Total third-party debt | 517,000,000 |  |  |  | 530,700,000 |
Total equity | 203,700,000 |  |  |  | 229,600,000 |
Total revenues (1) | 25,100,000 | [1] | 22,300,000 | [1] |  |
Gain on sale of operating properties, net of tax | 18,500,000 |  | 0 |  |  |
Net income | 20,000,000 |  | 2,000,000 |  |  |
Equity in income (2) | 4,290,000 | [2] | 934,000 | [2] |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Number of operating properties sold | 0 |  |  |  | 12 |
Sale of two operating properties within the funds in 2014 |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Revenues from discontinued operations attributable to unconsolidated joint venture | 1,100,000 |  | 1,800,000 |  |  |
Number of operating properties sold | 2 |  |  |  |  |
Sale of 16 operating properties within two unconsolidated joint ventures in 2013 [Member] |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Revenues from discontinued operations attributable to unconsolidated joint venture |  |  | $ 8,400,000 |  |  |
Number of operating properties sold |  |  |  |  | 16 |
[1] | Excludes approximately $1.1 million and $1.8 million for the three months ended March 31, 2014, and 2013, respectively, related to the sale of two operating properties by the funds during the first quarter of 2014. Additionally, excludes approximately $8.4 million for the three months ended March 31, 2013, related to the sale of 16 operating properties within two of our unconsolidated joint ventures in May and December 2013.
[2] | Equity in income excludes our ownership interest of fee income from various property management services provided by us to the funds.

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