v3.26.1
Fair Value of Financial Instruments - Schedule of Cash, Cash Equivalents and Investments Classified by Security Type (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Sep. 30, 2025
Schedule of Cash, Cash Equivalents and Investments Classified by Security Type [Line Items]    
Adjusted cost $ 339,356 $ 251,544
Gross unrealized gains 239 393
Gross unrealized losses
Fair value 339,595 251,937
Cash and cash equivalents 301,962 185,574
Short-term investments 37,633 66,363
Cash [Member]    
Schedule of Cash, Cash Equivalents and Investments Classified by Security Type [Line Items]    
Adjusted cost 295,281 76,441
Gross unrealized gains
Gross unrealized losses
Fair value 295,281 76,441
Cash and cash equivalents 295,281 76,441
Short-term investments
U.S. government securities [Member]    
Schedule of Cash, Cash Equivalents and Investments Classified by Security Type [Line Items]    
Adjusted cost 32,218 80,915
Gross unrealized gains 239 393
Gross unrealized losses
Fair value 32,457 81,308
Cash and cash equivalents
Short-term investments 32,457 18,391
Certificates of deposit and time deposits [Member]    
Schedule of Cash, Cash Equivalents and Investments Classified by Security Type [Line Items]    
Adjusted cost 5,176 48,656
Gross unrealized gains
Gross unrealized losses
Fair value 5,176 48,656
Cash and cash equivalents
Short-term investments 5,176 47,972
Money market funds [Member]    
Schedule of Cash, Cash Equivalents and Investments Classified by Security Type [Line Items]    
Adjusted cost 6,681 45,532
Gross unrealized gains
Gross unrealized losses
Fair value 6,681 45,532
Cash and cash equivalents 6,681 45,532
Short-term investments