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Long Term Investments (Tables)
6 Months Ended
Jun. 30, 2012
Long-term Investments [Abstract]  
Long-term investments
Long-term investments accounted for at cost:

 
June 30, 2012
 
December 31, 2011
 
Carrying
 
Fair
 
Carrying
 
Fair
 
Value
 
Value
 
Value
 
Value
Investment partnerships
$
15,540

 
$
15,837

 
$
4,776

 
$
6,199

Real estate partnership
827

 
1,365

 
899

 
1,293

Investments accounted for at cost
$
16,367

 
$
17,202

 
$
5,675

 
$
7,492

Schedule of Equity Method Investments
Long-term investment partnerships accounted for under the equity method:
 
June 30,
2012
 
December 31,
2011
Investment partnerships
$
5,552

 
$
16,499