Goodwill and Intangible Assets - Schedule of Changes in Goodwill by Reportable Segments (Details) $ in Thousands	9 Months Ended
	Jun. 30, 2024 USD ($)
Goodwill [Line Items]
Balance, October 1, 2023	$ 3,358,511
Foreign currency translation adjustment	6,616
Balance, June 30, 2024	3,442,245
Pure System
Goodwill [Line Items]
Goodwill, acquired	$ 77,118