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Unsecured Revolving Credit Facility (Tables)
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6 Months Ended |
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Jun. 30, 2012
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| Debt Disclosure [Abstract] | |
| Change In The Operating Partnership's Unsecured Debt Ratings |
| X | ||||||||||
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- Definition
Schedule of Unsecured Credit Rating, Operating Partnerships [Table Text Block] No definition available.
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| X | ||||||||||
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- Details
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