v3.26.1
Segment Information - Revenues by Geographic Region (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Schedule of Revenues by Geographic Region [Line Items]        
Revenue from contract with customer, excluding assessed tax $ 865,077 $ 780,370 $ 2,499,242 $ 2,277,982
United States        
Schedule of Revenues by Geographic Region [Line Items]        
Revenue from contract with customer, excluding assessed tax 453,985 411,093 1,251,500 1,192,270
Other Americas        
Schedule of Revenues by Geographic Region [Line Items]        
Revenue from contract with customer, excluding assessed tax 24,578 19,878 73,722 66,800
Total Americas        
Schedule of Revenues by Geographic Region [Line Items]        
Revenue from contract with customer, excluding assessed tax 478,563 430,971 1,325,222 1,259,070
EMEA        
Schedule of Revenues by Geographic Region [Line Items]        
Revenue from contract with customer, excluding assessed tax 256,030 202,073 770,600 620,431
APAC        
Schedule of Revenues by Geographic Region [Line Items]        
Revenue from contract with customer, excluding assessed tax $ 130,484 $ 147,326 $ 403,420 $ 398,481