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FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS (Tables)
12 Months Ended
Dec. 31, 2012
FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS [Abstract]  
Schedule of Changes in Fair Value of Derivatives
The change in fair value of derivatives comprised the following for the years ended December 31, 2012, 2011 and 2010:
 
For The Years Ending December 31,
 
2012

 
2011

 
2010

Share subscription agreement
$
22,836

 
$

 
$

Company option
24,953

 

 

Interest rate swap
573

 
323

 
(1,041
)
Currency swap
665

 
6,778

 
(585
)
Call option

 
180

 
2,790

Change in fair value of derivatives
$
49,027

 
$
7,281

 
$
1,164