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Cash and Cash Equivalents (Tables)
 12 Months Ended
Dec. 31, 2018
Text block [abstract]  
Summary of Cash and Cash Equivalents

For the purpose of the consolidated statements of cash flows, cash and cash equivalents consist of the following:

  

 

 

 

        December 31

 

 

              December 31  
     2018      2017  
      $      $  

Cash

      176.5        234.7  

Unrestricted investments

      8.7        4.8  

Cash and cash equivalents

      185.2        239.5