Acquisitions (Schedule of Assets Acquired and Liabilities Assumed) (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Sep. 30, 2024
Business Acquisition [Line Items]
Goodwill	$ 791,989	$ 806,643

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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+ Details