v3.26.1
Segment Information - Revenues by Geographic Region (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2026
Mar. 31, 2025
Schedule of Revenues by Geographic Region [Line Items]        
Revenue from contract with customer, excluding assessed tax $ 811,700 $ 731,123 $ 1,634,165 $ 1,497,612
United States        
Schedule of Revenues by Geographic Region [Line Items]        
Revenue from contract with customer, excluding assessed tax 384,318 373,789 797,514 781,177
Other Americas        
Schedule of Revenues by Geographic Region [Line Items]        
Revenue from contract with customer, excluding assessed tax 22,552 22,337 49,144 46,922
Total Americas        
Schedule of Revenues by Geographic Region [Line Items]        
Revenue from contract with customer, excluding assessed tax 406,870 396,126 846,658 828,099
EMEA        
Schedule of Revenues by Geographic Region [Line Items]        
Revenue from contract with customer, excluding assessed tax 260,862 213,971 514,571 418,358
APAC        
Schedule of Revenues by Geographic Region [Line Items]        
Revenue from contract with customer, excluding assessed tax $ 143,968 $ 121,026 $ 272,936 $ 251,155