Leases - Schedule of Supplemental Cash Flow Information (Parenthetical) (Details) - USD ($) $ in Thousands		12 Months Ended
		Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2021
Lessee, Lease, Description [Line Items]
Right-of-use assets obtained in exchange for new lease obligations, operating leases	[1]	$ 28,257	$ 15,431	$ 9,576
Servicemax Inc. acquisition
Lessee, Lease, Description [Line Items]
Right-of-use assets obtained in exchange for new lease obligations, operating leases		$ 4,000

[1] In the year ended September 30, 2023, operating lease additions included $4.0 million related to the ServiceMax acquisition.