v3.26.1
Discontinued Operations, Goodwill and Intangible Assets - Schedule of Changes in Carrying Value of Goodwill by Reportable Segment (Details)
$ in Thousands
 9 Months Ended
Jun. 30, 2026
USD ($)
Goodwill [Roll Forward]  
Goodwill, beginning balance $ 3,700,619
Foreign Exchange Impact (4,700)
Post-Acquisition Adjustments 71,200
Goodwill, ending balance 3,767,142
Americas  
Goodwill [Roll Forward]  
Goodwill, beginning balance 2,770,400
Foreign Exchange Impact (2,900)
Post-Acquisition Adjustments 47,700
Goodwill, ending balance 2,815,200
International  
Goodwill [Roll Forward]  
Goodwill, beginning balance 930,200
Foreign Exchange Impact (1,800)
Post-Acquisition Adjustments 23,500
Goodwill, ending balance $ 951,900