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WORKERS' PARTICIPATION: (Tables)
12 Months Ended
Dec. 31, 2016
WORKERS' PARTICIPATION:  
Schedule of workers' participation expense

Workers' participation expense for the three years ended December 31, 2016 was as follows (in millions):

 

                                                                                                                                                                                    

 

 

2016

 

2015

 

2014

 

Current

 

$

131.8

 

$

140.8

 

$

221.2

 

Deferred

 

 

(13.4

)

 

(19.8

)

 

(11.4

)

​  

​  

​  

​  

​  

​  

 

 

$

118.4

 

$

121.0

 

$

209.8

 

​  

​  

​  

​  

​  

​  

​  

​  

​  

​  

​  

​