Acquisitions - Schedule of Purchase Price Allocation (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Oct. 04, 2023	Sep. 30, 2023
Business Acquisition [Line Items]
Goodwill	$ 3,442,245		$ 3,358,511
Pure System
Business Acquisition [Line Items]
Goodwill		$ 77,118
Net tax liability		(8,860)
Acquired debt		(2,475)
Other net liabilities		(526)
Total		93,457
Customer relationships | Pure System
Business Acquisition [Line Items]
Intangible assets		17,400
Purchased Software | Pure System
Business Acquisition [Line Items]
Intangible assets		10,000
Trademarks | Pure System
Business Acquisition [Line Items]
Intangible assets		$ 800