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Long Term Investments (Tables)
6 Months Ended
Jun. 30, 2013
Long-term Investments [Abstract]  
Long-term investments
Long-term investments accounted for at cost:

 
June 30, 2013
 
December 31, 2012
 
Carrying
 
Fair
 
Carrying
 
Fair
 
Value
 
Value
 
Value
 
Value
Investment partnerships
$
20,540

 
$
22,648

 
$
15,540

 
$
16,962

Real estate partnership
752

 
1,142

 
827

 
1,391

Investments accounted for at cost
$
21,292

 
$
23,790

 
$
16,367

 
$
18,353

Schedule of Equity Method Investments
Long-term investment partnership accounted for under the equity method:
 
June 30,
2013
 
December 31,
2012
Investment partnership
$
6,671

 
$
6,432