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Sales of Real Estate and Discontinued Operations (Tables)
9 Months Ended
Sep. 30, 2011
Sales of Real Estate and Discontinued Operations [Abstract] 
Schedule of Disposal Groups, Including Discontinued Operations, Income Statement, Balance Sheet and Additional Disclosures [Table Text Block]
The following presents the operating results for the properties sold and properties classified as held for sale for the applicable periods:
 
Three months ended September 30,
 
Nine months ended September 30,
 
2011
 
2010
 
2011
 
2010
Total gross revenues
$
715

 
$
5,865

 
$
4,137

 
$
21,236

Pre-tax income (loss), including gains on sale
$
(1,489
)
 
$
1,191

 
$
(28,262
)
 
$
(43,905
)