v3.26.1
NATURE OF OPERATIONS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule of Potentially Dilutive Common Shares Excluded from Calculation of Net Income per Share (Details) - shares
shares in Thousands
 3 Months Ended 9 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]        
Total potentially dilutive common shares outstanding (in shares) 9,285 20,135 13,764 19,257
Stock options        
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]        
Total potentially dilutive common shares outstanding (in shares) 1 352 62 361
RSUs        
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]        
Total potentially dilutive common shares outstanding (in shares) 1,787 2,458 1,864 2,077
ESPP common stock equivalents        
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]        
Total potentially dilutive common shares outstanding (in shares) 51 125 25 40
Performance options        
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]        
Total potentially dilutive common shares outstanding (in shares) 0 759 0 729
Performance RSUs        
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]        
Total potentially dilutive common shares outstanding (in shares) 1,325 1,545 1,425 1,154
Convertible senior notes        
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]        
Total potentially dilutive common shares outstanding (in shares) 0 7,448 3,383 7,448
Warrants        
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]        
Total potentially dilutive common shares outstanding (in shares) 6,121 7,448 7,005 7,448