Fair Value Measurements - Narrative (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Sep. 30, 2023 |
Sep. 30, 2022 |
Sep. 30, 2021 |
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| Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items] | |||
| Impairment, Long-Lived Asset, Held-for-Use, Statement of Income or Comprehensive Income [Extensible Enumeration] | Amortization of intangible assets | Amortization of intangible assets | Amortization of intangible assets |
| U.S. Services and Outside the U.S. Services | |||
| Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items] | |||
| Impairment of long-lived assets held-for-use | $ 9.5 | $ 0.0 | $ 12.5 |
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Indicates line item in statement of income or comprehensive income that includes impairment of long-lived asset held for use. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Details
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