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Other Non-Current Assets (Tables)
 12 Months Ended
Dec. 31, 2021
Subclassifications of assets, liabilities and equities [abstract]  
Disclosure of Detailed Information About Non-current Assets
December 31
Note20202021
 Net pension assets18$5.6 $5.1 
Land rights
9.3 8.9 
Deferred investment costs
1.8 2.4 
Deferred financing costs
1.5 2.3 
Other
7.3 6.5 
$25.5 $25.2