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Business And Organization (Details) (USD $) In Millions, except Share data, unless otherwise specified | 9 Months Ended |
--- | --- | ---
Sep. 30, 2012 property | Sep. 30, 2012 RioCan Real Estate Investment Trust [Member] property | Oct. 10, 2012 Franklin Village [Member]
Business And Organization [Line Items] |  |  |
Number of properties | 67 | 22 |
OP units outstanding | 281,000 |  |
Equity Method Investment, Ownership Percentage |  | 20.00% | 100.00%
Value of ownership interest |  |  | $ 75.1
Assumption of mortgage financing related to the exchange agreement |  |  | 43.1
Cash received in exchange agreement |  |  | 40.0
Company's interest in Operating Partnership | 99.60% |  |
Limited partners' interest in Operating Partnership | 0.40% |  |
Accrued severance arrangements |  | $ 1.1 |

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