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AVAILABLE-FOR-SALE SECURITIES (Tables)
3 Months Ended
Mar. 31, 2014
AVAILABLE-FOR-SALE SECURITIES  
Schedule of available-for-sale securities

 

   
  As at
March 31,
2014
  As at
December 31,
2013
 
 

Available-for-sale securities in an unrealized gain position:

             
 

Cost (net of impairments)

  $ 41,028   $ 30,583  
 

Unrealized gains in accumulated other comprehensive income (loss)

    31,123     11,530  
             
 

Estimated fair value

    72,151     42,113  
             
 

Available-for-sale securities in an unrealized loss position:

             
 

Cost (net of impairments)

    39,987     39,933  
 

Unrealized losses in accumulated other comprehensive income (loss)

    (6,320 )   (7,465 )
             
 

Estimated fair value

    33,667     32,468  
             
 

Total estimated fair value of available-for-sale securities

  $ 105,818   $ 74,581