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Goodwill and Intangible Assets - Balances of Acquired Intangible Assets, Excluding Goodwill (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Mar. 31, 2023
Dec. 31, 2022
Finite-Lived Intangible Assets [Line Items]    
Original cost $ 193.5 $ 191.1
Accumulated amortization (120.3) (114.7)
Carrying value 73.2 76.4
Customer Lists    
Finite-Lived Intangible Assets [Line Items]    
Original cost 148.5 146.6
Accumulated amortization (91.5) (87.5)
Carrying value $ 57.0 $ 59.1
Weighted average original life (in years) 15 years 15 years
Trade Names    
Finite-Lived Intangible Assets [Line Items]    
Original cost $ 28.9 $ 28.6
Accumulated amortization (16.8) (15.9)
Carrying value $ 12.1 $ 12.7
Weighted average original life (in years) 11 years 11 years
Technology    
Finite-Lived Intangible Assets [Line Items]    
Original cost $ 16.1 $ 15.9
Accumulated amortization (12.0) (11.3)
Carrying value $ 4.1 $ 4.6
Weighted average original life (in years) 11 years 11 years