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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

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