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Pending Acquisition of Ansys (Details) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Apr. 30, 2025 USD ($)	Apr. 30, 2024 USD ($)	Jun. 30, 2025 USD ($) $ / shares	Apr. 30, 2025 USD ($)	Apr. 30, 2024 USD ($)	Oct. 03, 2024 USD ($)	Feb. 13, 2024 USD ($)
Business Combination [Line Items]
Transaction costs	$ 65.0	$ 25.3		$ 121.8	$ 57.2
Term Loan Agreement \| Line of Credit
Business Combination [Line Items]
Maximum borrowing capacity							$ 4,300.0
Bridge Loan \| Bridge Commitment \| Line of Credit
Business Combination [Line Items]
Maximum borrowing capacity	$ 690.0			$ 690.0		$ 10,600.0
Forecast \| ANSYS, Inc.
Business Combination [Line Items]
Total purchase consideration			$ 35,000.0
Business acquisition, exchange ratio			0.3450
Business acquisition, share price \| $ / shares			$ 197.00
Business acquisition, maximum stock to be issued as a percentage of stock issued and outstanding			19.9999%
Termination fee payable			$ 1,500.0
Termination fee receivable			$ 950.0