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Intangible Assets - Schedule of Amortized Intangible Assets (Details) - USD ($)
$ in Millions
 3 Months Ended 12 Months Ended
Jun. 30, 2024
Dec. 31, 2023
Sep. 30, 2024
Finite-Lived Intangible Assets [Line Items]      
Gross Carrying Amount   $ 873.9 $ 891.9
Accumulated Amortization   258.1 306.4
Net Carrying Amount   615.8 585.5
Impairment of Intangible Assets (Excluding Goodwill) [Abstract]      
Impairment of intangibles $ 0.6 0.7  
Trade names      
Indefinite-Lived Intangible Assets [Line Items]      
Gross Carrying Amount   15.5  
Net Carrying Amount   15.5  
Customer relationships      
Finite-Lived Intangible Assets [Line Items]      
Gross Carrying Amount   743.8 746.4
Accumulated Amortization   209.4 247.5
Net Carrying Amount   534.4 498.9
Acquired and developed technology      
Finite-Lived Intangible Assets [Line Items]      
Gross Carrying Amount   92.6 92.2
Accumulated Amortization   38.6 46.1
Net Carrying Amount   54.0 46.1
Trade names      
Finite-Lived Intangible Assets [Line Items]      
Gross Carrying Amount   32.7 48.5
Accumulated Amortization   6.4 8.9
Net Carrying Amount   26.3 39.6
Non-compete agreements      
Finite-Lived Intangible Assets [Line Items]      
Gross Carrying Amount   2.9 2.9
Accumulated Amortization   2.8 2.9
Net Carrying Amount   0.1 0.0
Patents      
Finite-Lived Intangible Assets [Line Items]      
Gross Carrying Amount   1.9 1.9
Accumulated Amortization   0.9 1.0
Net Carrying Amount   $ 1.0 $ 0.9