Description of the Business and Summary of Significant Accounting Policies - Reduction in Workforce (Narrative) (Details) - 2024 Global Workforce Reduction Plan - USD ($) $ in Millions |
1 Months Ended | 3 Months Ended | 6 Months Ended | 9 Months Ended |
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Oct. 31, 2024 |
Jun. 30, 2025 |
Jun. 30, 2025 |
Jun. 30, 2025 |
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| Restructuring Cost and Reserve [Line Items] | ||||
| Expected reduction of workforce | 20.00% | |||
| Expected costs | $ 65.0 | |||
| Payments for restructuring, including pro rata amount | $ 2.3 | $ 12.5 | $ 64.5 | |
| Charges | $ 1.2 | $ 3.5 | $ 50.7 | |
| Employee Severance | ||||
| Restructuring Cost and Reserve [Line Items] | ||||
| Expected costs | $ 51.0 |
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- Definition Payments For Restructuring, Including Pro Rata Amount No definition available.
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- Definition Restructuring And Related Cost, Expected Number Of Positions Eliminated, Percent No definition available.
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- Definition Amount expected to be recognized in earnings for the specified restructuring cost. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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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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