Goodwill and Intangible Assets - Schedule of Changes in Goodwill by Reportable Segments (Details) $ in Thousands	6 Months Ended
Mar. 31, 2025 USD ($)
Goodwill [Line Items]
Balance, October 1, 2024	$ 3,461,891
Foreign currency translation adjustment	(17,787)
Balance, March 31, 2025	$ 3,444,104

Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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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.

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