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Debt (Tables)
 12 Months Ended
Dec. 31, 2021
Debt Disclosure [Abstract]  
Outstanding Debt
The following table summarizes our outstanding debt obligations.
As of December 3120212020
Commercial paper$195.4 $104.3 
Current maturities of long-term debt2.2 2.5 
Commercial paper and current maturities of long-term debt197.6 106.8 
Non-current maturities of long-term debt9.9 13.0 
Total debt$207.5 $119.8