Discontinued Operations, Goodwill and Intangible Assets - Schedule of Changes in Carrying Value of Goodwill by Reportable Segment (Details) $ in Thousands	3 Months Ended
	Dec. 31, 2024 USD ($)
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 3,480,155
Foreign Exchange Impact	(52,000)
Goodwill, ending balance	3,428,231
Americas
Goodwill [Roll Forward]
Goodwill, beginning balance	2,625,700
Foreign Exchange Impact	(11,000)
Goodwill, ending balance	2,614,700
International
Goodwill [Roll Forward]
Goodwill, beginning balance	854,500
Foreign Exchange Impact	(41,000)
Goodwill, ending balance	$ 813,500