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Postretirement and Other Benefits (Tables)
6 Months Ended
Jun. 30, 2022
Retirement Benefits [Abstract]  
Schedule of Net Benefit Costs
The components of net pension benefit costs for the employees in the United States, France and United Kingdom were as follows (in millions):
Three Months Ended June 30,
 United StatesFranceUnited Kingdom
 202220212022202120222021
Service cost$— $— $0.3 $0.4 $— $— 
Interest cost0.8 0.7 — 0.1 0.6 0.8 
Expected return on plan assets(1.0)(1.0)— — (0.7)(0.9)
Amortizations and other0.4 0.9 0.2 0.2 — — 
Net periodic benefit cost$0.2 $0.6 $0.5 $0.7 $(0.1)$(0.1)
Six Months Ended June 30,
 United StatesFranceUnited Kingdom
 202220212022202120222021
Service cost$— $— $0.7 $0.7 $— $— 
Interest cost1.6 1.4 0.1 0.1 1.1 0.8 
Expected return on plan assets(2.0)(2.0)— — (1.3)(0.9)
Amortizations and other0.8 1.8 0.3 0.5 — — 
Net periodic benefit cost$0.4 $1.2 $1.1 $1.3 $(0.2)$(0.1)