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Restructuring (Tables)
9 Months Ended
Sep. 30, 2021
Restructuring and Related Activities [Abstract]  
Summary of Restructuring Activities Included in Accrued Expenses Other Current Liabilities The following table provides a summary of our restructuring activities (in millions):
AviationLandMarineCorporateConsolidated
Accrued charges as of December 31, 2020$0.9 $4.6 $0.9 $0.1 $6.6 
Restructuring charges0.7 6.2 (0.2)— 6.8 
Paid during the period(0.7)(9.3)(0.4)(0.1)(10.5)
Accrued charges as of September 30, 2021$0.9 $1.6 $0.4 $— $2.8