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Investment Income
12 Months Ended
Dec. 31, 2020
Text block [abstract]  
Investment Income
 
3.
  
INVESTMENT INCOME
 
 
 
 
 
 
 
 
 
 
 
 
 

  
 
 
   
 

 
 
 
 

 
 
 
 
 
 
 
   Dividends received  
 
0.4
 
  —     0.4 
   Interest received - environmental trust funds  
 
0.7
 
  0.7   0.6 
   Interest received - cash balances  
 
7.6
 
  6.6   6.8 
      
 
 
  
 
 
  
 
 
 
   
Total investment income
  
 
8.7
 
 
 
7.3
 
 
 
7.8