Subsequent Events - Segment Change (Details) $ in Thousands		12 Months Ended
	Oct. 01, 2023 USD ($) segment	Sep. 30, 2023 USD ($) segment	Sep. 30, 2022 USD ($) segment	Sep. 30, 2021 USD ($) segment
Segment Reporting, Disclosure of Entity's Reportable Segments [Abstract]
Number of operating segments | segment		2	2	2
Intangible Assets, Net (Including Goodwill) [Abstract]
Goodwill | $		$ 784,339	$ 513,623	$ 469,356
Subsequent Event
Segment Reporting, Disclosure of Entity's Reportable Segments [Abstract]
Number of operating segments | segment	3
Subsequent Event | B Medical Systems
Intangible Assets, Net (Including Goodwill) [Abstract]
Goodwill | $	$ 107,000