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Goodwill and Intangible Assets - Carrying Value of Goodwill (Details)
$ in Millions
9 Months Ended
Sep. 30, 2023
USD ($)
Goodwill [Roll Forward]  
Beginning balance $ 287.1
Translation adjustments 0.0
Ending balance 287.1
DWS  
Goodwill [Roll Forward]  
Beginning balance 140.5
Translation adjustments 0.0
Ending balance 140.5
CA&I  
Goodwill [Roll Forward]  
Beginning balance 38.0
Translation adjustments 0.0
Ending balance 38.0
ECS  
Goodwill [Roll Forward]  
Beginning balance 98.3
Translation adjustments 0.0
Ending balance 98.3
Other  
Goodwill [Roll Forward]  
Beginning balance 10.3
Translation adjustments 0.0
Ending balance $ 10.3