Notes and Bonds Payable (Details 4) (Mortgage Notes Payable [Member], USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Mortgage Notes Payable [Member]
Reconciliation of Mortgage Notes Payable
Mortgage Notes payable principal balance	$ 222,941	$ 225,377
Unaccreted discount	(3,558)	(3,728)
Mortgage notes payable carrying amount	$ 219,383	$ 221,649

The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized.

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.

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