Balance sheet components - Summary of
Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Thousands |
Jun. 30, 2026 |
Sep. 30, 2025 |
|---|---|---|
| Balance Sheet Related Disclosures [Abstract] | ||
| Accrued Expenses | $ 20,450 | $ 22,824 |
| Litigation accruals | 19,729 | 229 |
| Liability for issuance of shares of common stock | 5,000 | 0 |
| Income and other taxes payable | 7,376 | 4,543 |
| Contract liabilities | 6,466 | 6,884 |
| Other current liabilities | 682 | 722 |
| Other current liabilities | $ 59,703 | $ 35,202 |
| X | ||||||||||
- Definition Other Liabilities, Miscellaneous, Current No definition available.
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| X | ||||||||||
- Definition Stock Issuance Obligation, Classification, Current No definition available.
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| X | ||||||||||
- Definition Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount of deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable, classified as current. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Carrying amount of reserve for known or estimated probable loss from litigation, which may include attorneys' fees and other litigation costs, which is expected to be paid within one year of the date of the statement of financial position. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of liabilities classified as other, due within one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Carrying value as of the balance sheet date of obligations incurred and payable for statutory income, sales, use, payroll, excise, real, property and other taxes. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/exampleRef
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