Goodwill and Intangible Assets - Schedule of Changes in Goodwill by Reportable Segments (Details) $ in Thousands	6 Months Ended
	Mar. 31, 2023 USD ($)
Goodwill [Line Items]
Balance, October 1, 2022	$ 2,353,654
Foreign currency translation adjustment	40,256
Balance, March 31, 2023	3,369,041
Servicemax acquisition
Goodwill [Line Items]
Goodwill, acquired	975,131
Software Products
Goodwill [Line Items]
Balance, October 1, 2022	2,344,019
Foreign currency translation adjustment	40,091
Balance, March 31, 2023	3,359,241
Software Products | Servicemax acquisition
Goodwill [Line Items]
Goodwill, acquired	975,131
Professional Services
Goodwill [Line Items]
Balance, October 1, 2022	9,635
Foreign currency translation adjustment	165
Balance, March 31, 2023	9,800
Professional Services | Servicemax acquisition
Goodwill [Line Items]
Goodwill, acquired	$ 0