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Contingencies (Details)
$ in Millions, $ in Millions, $ in Millions
1 Months Ended 12 Months Ended 13 Months Ended
Dec. 21, 2021
USD ($)
Dec. 21, 2021
CAD ($)
Dec. 21, 2021
MXN ($)
Sep. 14, 2021
USD ($)
Sep. 14, 2021
CAD ($)
Dec. 31, 2020
USD ($)
Aug. 31, 2020
USD ($)
Aug. 31, 2020
CAD ($)
Oct. 31, 2019
USD ($)
Oct. 31, 2019
CAD ($)
Dec. 31, 2022
USD ($)
Dec. 31, 2022
CAD ($)
Dec. 31, 2021
USD ($)
Dec. 31, 2019
USD ($)
Dec. 31, 2019
CAD ($)
Dec. 31, 2022
CAD ($)
Apr. 01, 2022
USD ($)
Apr. 01, 2022
CAD ($)
Dec. 21, 2021
CAD ($)
Sep. 14, 2021
CAD ($)
Dec. 31, 2020
CAD ($)
Aug. 31, 2020
CAD ($)
Dec. 31, 2019
CAD ($)
Oct. 31, 2019
CAD ($)
Contingencies                                                
Income taxes paid                     $ 95.1   $ 93.5                      
Canada Revenue Agency Reassessment Action | Reassessment for the 2014 and 2015 taxation years | Canada                                                
Contingencies                                                
Provincial income taxes assessed       $ 7.4 $ 10.0       $ 1.0 $ 1.4                            
Percentage of security deposit for notice of objection against reassessment       50.00%         50.00%                     50.00%       50.00%
Canada Revenue Agency Reassessment Action | Reassessment for the 2014 and 2015 taxation years | Barbados                                                
Contingencies                                                
Provincial income taxes assessed                     $ 5.0 $ 6.7                        
Percentage of security deposit for notice of objection against reassessment           50.00%         50.00%         50.00%         50.00%      
Canada Revenue Agency Reassessment Action | Tax Year 2013 Through 2015 | Mexico                                                
Contingencies                                                
Provincial income taxes assessed                           $ 18.7 $ 25.3                  
Tax rate (as a percent)           50.00%                                    
Percentage of security deposit for notice of objection against reassessment                           50.00%                 50.00%  
Canada Revenue Agency Reassessment Action | Reassessment for the 2012 and 2013 | Barbados                                                
Contingencies                                                
Provincial income taxes assessed             $ 5.7 $ 7.7                                
Percentage of security deposit for notice of objection against reassessment             50.00%                             50.00%    
Canada Revenue Agency Reassessment Action | Tax Year 2016 Through 2017 | Mexico                                                
Contingencies                                                
Provincial income taxes assessed $ 3.4 $ 4.6                                            
Percentage of security deposit for notice of objection against reassessment 50.00%                                   50.00%          
Canada Revenue Agency Reassessment Action | Tax Year 2016 Through 2017 | Barbados                                                
Contingencies                                                
Provincial income taxes assessed                     $ 29.4 39.8                        
Percentage of security deposit for notice of objection against reassessment                     50.00%         50.00%                
Canada Revenue Agency Reassessment Action | Tax Year 2013 Through 2016 | Mexico                                                
Contingencies                                                
Provincial income taxes assessed $ 34.1   $ 490.3               $ 22.1 29.9                        
Tax rate (as a percent) 30.00% 30.00% 30.00%                                          
Canada Revenue Agency Reassessment Action | Tax Year 2018 Through 2021 | Canada                                                
Contingencies                                                
Provincial income taxes assessed                     44.2 59.9                        
Canada Revenue Agency Reassessment Action | Tax Year 2018 Through 2021 | Barbados                                                
Contingencies                                                
Provincial income taxes assessed                     216.8 293.7                        
Canada Revenue Agency Reassessment Action | Tax year 2014 through 2017 | Canada                                                
Contingencies                                                
Provincial income taxes assessed                     14.6 19.9                        
Canada Revenue Agency Reassessment Action | Tax year 2014 through 2017 | Barbados                                                
Contingencies                                                
Provincial income taxes assessed                     34.4 $ 46.5                        
Canada Revenue Agency Reassessment Action | Reassessment for the 2017 taxation year | Canada                                                
Contingencies                                                
Contingent liability recorded                                 $ 6.2 $ 8.5            
Percentage of security deposit for notice of objection against reassessment                                 50.00% 50.00%            
Canada Revenue Agency Transfer Pricing Contingent Penalty | Reassessment for the 2014 and 2015 taxation years | Barbados                                                
Contingencies                                                
Contingent liability recorded           $ 1.8         1.8         $ 2.5         $ 2.5      
Canada Revenue Agency Transfer Pricing Contingent Penalty | Reassessment for the 2013 and 2014 and 2015 taxation years | Mexico                                                
Contingencies                                                
Contingent liability recorded                     7.7         10.3                
Canada Revenue Agency Transfer Pricing Contingent Penalty | Tax Year 2016 | Mexico                                                
Contingencies                                                
Contingent liability recorded                     1.3         1.7                
Canada Revenue Agency Transfer Pricing Contingent Penalty | Tax Year 2013 Through 2015 | Mexico                                                
Contingencies                                                
Contingent liability recorded           $ 7.7                             $ 10.3      
Canada Revenue Agency Transfer Pricing Contingent Penalty | Tax Year 2016 Through 2017 | Mexico                                                
Contingencies                                                
Contingent liability recorded $ 1.3                                   $ 1.7          
Canada Revenue Agency Transfer Pricing Contingent Penalty | Tax Year 2016 Through 2017 | Barbados                                                
Contingencies                                                
Contingent liability recorded                     11.1         15.1                
Canada Revenue Agency Transfer Pricing Contingent Penalty | Tax Year 2018 Through 2021 | Canada                                                
Contingencies                                                
Contingent liability recorded       $ 44.2                               $ 59.9        
Canada Revenue Agency Transfer Pricing Contingent Penalty | Tax Year 2018 Through 2021 | Barbados                                                
Contingencies                                                
Contingent liability recorded                     81.8         110.9                
Canada Revenue Agency interest and other penalties | Reassessment for the 2014 and 2015 taxation years | Canada                                                
Contingencies                                                
Contingent liability recorded       2.3         $ 0.2                     3.1       $ 0.3
Canada Revenue Agency interest and other penalties | Reassessment for the 2014 and 2015 taxation years | Barbados                                                
Contingencies                                                
Contingent liability recorded                     2.5         3.4                
Canada Revenue Agency interest and other penalties | Tax Year 2013 Through 2015 | Mexico                                                
Contingencies                                                
Contingent liability recorded                           $ 10.0                 $ 13.6  
Canada Revenue Agency interest and other penalties | Reassessment for the 2012 and 2013 | Barbados                                                
Contingencies                                                
Contingent liability recorded             $ 2.8                             $ 3.7    
Canada Revenue Agency interest and other penalties | Tax Year 2016 Through 2017 | Mexico                                                
Contingencies                                                
Contingent liability recorded $ 1.1                                   $ 1.5          
Canada Revenue Agency interest and other penalties | Tax Year 2016 Through 2017 | Barbados                                                
Contingencies                                                
Contingent liability recorded                     8.9         12.1                
Canada Revenue Agency interest and other penalties | Tax Year 2013 Through 2016 | Mexico                                                
Contingencies                                                
Contingent liability recorded                     11.1         15.1                
Canada Revenue Agency interest and other penalties | Tax Year 2018 Through 2021 | Canada                                                
Contingencies                                                
Contingent liability recorded       $ 4.7             4.7         6.3       $ 6.3        
Canada Revenue Agency interest and other penalties | Tax Year 2018 Through 2021 | Barbados                                                
Contingencies                                                
Contingent liability recorded                     23.1         31.3                
Canada Revenue Agency interest and other penalties | Tax year 2014 through 2017 | Canada                                                
Contingencies                                                
Contingent liability recorded                     4.6         6.2                
Canada Revenue Agency interest and other penalties | Tax year 2014 through 2017 | Barbados                                                
Contingencies                                                
Contingent liability recorded                     $ 11.4         $ 15.5                
Canada Revenue Agency interest and other penalties | Reassessment for the 2017 taxation year | Canada                                                
Contingencies                                                
Contingent liability recorded                                 $ 2.1 $ 2.8