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Accounting for the Impairment or Disposal of Long-Lived Assets (Tables)
6 Months Ended
Jun. 30, 2015
Disposal Group, Including Discontinued Operation, Long Lived Assets [Abstract]  
Discontinued Operations, Income Statement [Table Text Block]
A summary of the results of operations for the properties classified as discontinued operations through the respective disposition dates is as follows (in thousands):
 
 
Three Months Ended June 30,
 
Six Months Ended June 30,
 
2015
 
2014
 
2015
 
2014
Revenues
$

 
$
(29
)
 
$

 
$
4,719

Operating expenses

 
183

 

 
(2,312
)
Interest and other income

 
2

 

 
39

Interest expense

 

 

 
(557
)
Depreciation and amortization

 

 

 

Income before gain on property dispositions

 
156

 

 
1,889

Gain on property dispositions

 
139

 

 
46,254

Net income
$

 
$
295

 
$

 
$
48,143