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Consolidated Balance Sheets (Parentheticals)	Jun. 30, 2012	Dec. 31, 2011
Equity:
Limited partners: Depositary units issued	100,313,727	86,708,914
Limited partners: Depositary units outstanding	100,313,727	85,571,714
Treasury Units at Cost, units outstanding	0	1,137,200

X

- Definition

The number of limited partner units issued.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Emerging Issues Task Force (EITF)



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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.







Reference 2: http://www.xbrl.org/2003/role/presentationRef



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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.







Reference 3: http://www.xbrl.org/2003/role/presentationRef



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Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends.

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