XML 32 R30.htm IDEA: XBRL DOCUMENT v3.3.0.814
COMMITMENTS AND CONTINGENCIES: (Tables)
 9 Months Ended
Sep. 30, 2015
COMMITMENTS AND CONTINGENCIES:  
Schedule of environmental capital investments

 

Environmental capital investments in the nine months ended September 30, 2015 and 2014 were as follows (in millions):

 

 

 

2015

 

2014

 

Peruvian operations

 

$
60.8 

 

$
95.9 

 

Mexican operations

 
15.4 

 
17.5 

 

 

 

 

 

 

 

 

 

$
76.2 

 

$
113.4