Acquisitions (Narrative) (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Sep. 30, 2023
Business Acquisition [Line Items]
Goodwill	$ 796,706	$ 791,468
Future amortization expense associated with the acquired intangibles for fiscal year ended September 30, 2023	16,305
Future amortization expense associated with the acquired intangibles for fiscal year ended September 30, 2024	28,293
Future amortization expense associated with the acquired intangibles for fiscal year ended September 30, 2025	28,283
Future amortization expense associated with the acquired intangibles for fiscal year ended September 30, 2026	28,232
Future amortization expense associated with the acquired intangibles for fiscal year ended September 30, 2027	$ 27,636

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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