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Basis of Presentation - Cash and Cash Equivalents (Details) - USD ($) $ in Millions | Sep. 30, 2023 | Sep. 30, 2022
--- | --- | ---
Fair Value, Inputs, Level 1 |  |
Cash and Cash Equivalents [Abstract] |  |
Fair value of cash and cash equivalents | $ 334.6 | $ 31.9
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Fair value of cash and cash equivalents | 334.6 | 31.9
Contingent considerations | 0.0 | 0.0
Fair Value, Inputs, Level 1 | Foreign Exchange Contract |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Derivative instruments, assets and liabilities | 0.0 | 0.0
Fair Value, Inputs, Level 1 | Derivative Contracts |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Derivative instruments, assets and liabilities | 0.0 | 0.0
Fair Value, Inputs, Level 2 |  |
Cash and Cash Equivalents [Abstract] |  |
Fair value of cash and cash equivalents | 0.0 | 0.0
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Fair value of cash and cash equivalents | 0.0 | 0.0
Contingent considerations | 0.0 | 0.0
Fair Value, Inputs, Level 2 | Foreign Exchange Contract |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Derivative instruments, assets and liabilities |  | 0.0
Fair Value, Inputs, Level 2 | Derivative Contracts |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Derivative instruments, assets and liabilities |  | (82.1)
Fair Value, Inputs, Level 2 | Revolving Credit Facility |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Revolving loan | 150.0 |
Fair Value, Inputs, Level 3 |  |
Cash and Cash Equivalents [Abstract] |  |
Fair value of cash and cash equivalents | 0.0 | 0.0
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Fair value of cash and cash equivalents | 0.0 | 0.0
Contingent considerations | 5.4 | 0.0
Fair Value, Inputs, Level 3 | Foreign Exchange Contract |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Derivative instruments, assets and liabilities | 0.0 | 0.0
Fair Value, Inputs, Level 3 | Derivative Contracts |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Derivative instruments, assets and liabilities | $ 0.0 | $ 0.0

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- Definition Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References No definition available. + Details
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- Definition Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. 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