Revenue from Contracts with Customers - Additional Information (Details) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2023	Mar. 31, 2022	Sep. 30, 2022
Revenue from External Customer [Line Items]
Contract with customer, asset, expected to be transferred to receivables within the next 12 months and therefore	$ 22,500,000		$ 22,500,000
Contract with customer, asset, reclassified to receivable					$ 7,900,000
Contract with customer, asset, increase in contract assets related to revenue recognized			10,600,000
Impairments of the contract cost asset	0	$ 0	0	$ 0
Deferred revenue, revenue recognized			362,300,000
Deferred revenue, additions					415,600,000
Short term and long term accounts receivable	862,800,000		862,800,000		871,000,000.0
Deferred revenue	671,404,000		671,404,000		520,333,000
Refund liability	27,100,000		27,100,000		34,200,000
Allowance for doubtful accounts receivable	400,000		400,000		400,000
Amortization expense related to costs to obtain a contract with a customer	12,500,000	$ 12,700,000	24,500,000	$ 24,300,000
Revenue, remaining performance obligation, amount	2,008,400,000		2,008,400,000
Unrecorded
Revenue from External Customer [Line Items]
Revenue, remaining performance obligation, amount	1,337,000,000.0		1,337,000,000.0
Other Current Assets
Revenue from External Customer [Line Items]
Capitalized contract cost, net	42,300,000		42,300,000		40,700,000
Other Assets
Revenue from External Customer [Line Items]
Capitalized contract cost, net	$ 77,300,000		77,300,000		$ 77,000,000.0
Servicemax Inc. acquisition
Revenue from External Customer [Line Items]
Deferred revenue increased			$ 97,800,000