v3.26.1
Stock-Based Compensation - Schedule of Share Activity Related to RSUs (Details) - Restricted stock units
9 Months Ended
Jun. 30, 2026
$ / shares
shares
Number of RSUs  
Beginning of period (in shares) | shares 5,810,351
Granted (in shares) | shares 2,049,141
Vested (in shares) | shares (1,794,793)
Forfeited (in shares) | shares (270,045)
End of period (in shares) | shares 5,794,654
Weighted- Average Grant Date Fair Value Per Share  
Beginning balance (in dollars per share) | $ / shares $ 36.97
Granted (in dollars per share) | $ / shares 66.42
Vested (in dollars per share) | $ / shares 41.69
Forfeited (in dollars per share) | $ / shares 31.55
Ending balance (in dollars per share) | $ / shares $ 49.69