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Summary Of Significant Accounting Policies And Recent Accounting Pronouncements (Expected Useful Lives Of Depreciable Property) (Details)	12 Months Ended
	Dec. 31, 2011
Property, Plant and Equipment [Line Items]
Intangible assets (in-place leases and above and below market leases)	underlying lease term
Buildings And Improvements [Member]
Property, Plant and Equipment [Line Items]
Minimum Estimated Useful Life (in years)	5
Maximum Estimated Useful Life (in years)	35
Furniture, Fixtures, Equipment, And Other [Member]
Property, Plant and Equipment [Line Items]
Minimum Estimated Useful Life (in years)	3
Maximum Estimated Useful Life (in years)	20

X

- Definition

Expected useful lives of intangible assets related to in-place leases and above and below market leases.

+ References

No definition available.

+ Details

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X

- Details

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X

- Definition

The maximum useful life of long-lived, physical assets used in the normal conduct of business and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software.

+ References

No definition available.

+ Details

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X

- Definition

The minimum useful life of long lived, physical assets used in the normal conduct of business and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software.

+ References

No definition available.

+ Details

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