Subsequent Events (Details) $ in Thousands, € in Millions					1 Months Ended	12 Months Ended
	Oct. 04, 2023 USD ($)	Oct. 04, 2023 EUR (€)	Oct. 02, 2023 USD ($)	Jan. 03, 2023 USD ($)	Oct. 31, 2023 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)
Subsequent Event [Line Items]
Cash borrowed from existing credit facility						$ 1,540,000	$ 264,000	$ 600,000
Aggregate payments						1,197,000	$ 355,000	$ 168,000
ServiceMax
Subsequent Event [Line Items]
Deferred acquisition payments			$ 650,000	$ 650,000		$ 650,000
Payments to acquire business			620,000	620,000
Imputed interest payable			$ 30,000
Payments to acquire business				$ 828,200
Subsequent Event
Subsequent Event [Line Items]
Aggregate payments	$ 45,000
Subsequent Event | ServiceMax
Subsequent Event [Line Items]
Deferred acquisition payments					$ 650,000
Payments to acquire business					620,000
Imputed interest payable					30,000
Cash borrowed from existing credit facility					$ 650,000
Subsequent Event | Pure Systems
Subsequent Event [Line Items]
Cash borrowed from existing credit facility	90,000	€ 85
Payments to acquire business	$ 98,000