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Other Non-Current Assets
 12 Months Ended
Dec. 31, 2023
Subclassifications of assets, liabilities and equities [abstract]  
Other Non-Current Assets OTHER NON-CURRENT ASSETS:
December 31
Note20222023
 Net pension assets18$7.1 $5.3 
Land rights
7.3 6.9 
Deferred investment costs
1.7 9.3 
Deferred financing costs
1.5 1.1 
Interest rate swap derivative2018.7 11.0 
Other
17.2 15.3 
$53.5 $48.9