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Unsecured Revolving Credit Facility (Tables)
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12 Months Ended | ||||||||||||||||||||||||
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Dec. 31, 2011
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| Unsecured Revolving Credit Facility [Abstract] | |||||||||||||||||||||||||
| Change In The Operating Partnership's Unsecured Debt Ratings |
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| X | ||||||||||
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- Definition
Schedule of Unsecured Credit Rating, Operating Partnerships [Table Text Block] No definition available.
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- Details
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