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COMMITTMENTS AND CONTINGENCIES: (Tables)
6 Months Ended
Jun. 30, 2011
COMMITMENTS AND CONTINGENCIES:  
Schedule of environmental capital expenditures

 

 

 

2011

 

2010

 

Peruvian operations

 

$

1.1

 

$

3.8

 

Mexican operations

 

3.7

 

5.5

 

 

 

$

4.8

 

$

9.3