Segment Reporting (Details Textual)
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9 Months Ended |
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Sep. 30, 2012
Properties
Business_Segments
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Number of Operating Segments | 5 |
Segment Reporting (Textual) [Abstract] | |
Number of properties generated by rental revenue | 400 |
SunTrust Banks, Inc. [Member]
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Segment Reporting (Textual) [Abstract] | |
Percentage of rental revenue | 9.00% |
AT&T, Inc. [Member]
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Segment Reporting (Textual) [Abstract] | |
Percentage of rental revenue | 7.00% |
Number of Leased Properties | 3 |