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Senior Notes and Secured Indebtedness (Summary Of Senior Notes Redemption Prices Percentage) (Details)
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12 Months Ended |
|---|---|
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Dec. 31, 2012
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| Debt Disclosure [Abstract] | |
| 2016 | 104.25% |
| 2017 | 102.125% |
| 2018 and thereafter | 100.00% |