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Investment in Unconsolidated Ventures (Tables) | 9 Months Ended
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Sep. 30, 2012
Equity Method Investments and Joint Ventures [Abstract] |
Financial position of unconsolidated Real Estate Ventures |
| September 30, 2012 |  | December 31, 2011 |
Net property | $ | 925,227 |  |  | $ | 846,643 |
Other assets | 180,957 |  |  | 110,520 |
Other liabilities | 55,592 |  |  | 48,798 |
Debt | 740,885 |  |  | 745,830 |
Equity | 309,707 |  |  | 162,535 |
Company’s share of equity (Company’s basis) | 179,037 |  |  | 115,807 |
Summary of results of operations of unconsolidated Real Estate Ventures |
| Three-month periods ended September 30, |  | Nine-month periods ended September 30,
| 2012 |  | 2011 |  | 2012 |  | 2011
Revenue | $ | 42,772 |  |  | $ | 36,345 |  |  | $ | 120,644 |  |  | $ | 108,743 |
Operating expenses | 18,753 |  |  | 15,863 |  |  | 51,819 |  |  | 46,407 |
Interest expense, net | 10,233 |  |  | 10,326 |  |  | 31,100 |  |  | 31,999 |
Depreciation and amortization | 12,947 |  |  | 9,869 |  |  | 36,067 |  |  | 28,836 |
Net income (loss) | 839 |  |  | 287 |  |  | 1,658 |  |  | 1,501 |
Company’s share of income (Company’s basis) | 500 |  |  | 418 |  |  | 1,382 |  |  | 2,739 |

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