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Restructuring and Other Charges - Narrative (Details) $ in Thousands |  |  |  | 3 Months Ended | 6 Months Ended
--- | --- | --- | --- | --- | ---
Apr. 01, 2025 numberOfEmployee | Jan. 06, 2025 numberOfEmployee | Jan. 03, 2025 numberOfEmployee | Mar. 31, 2025 USD ($) | Mar. 31, 2025 USD ($)
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring and related cost, expected number of positions eliminated | numberOfEmployee |  | 135 | 172 |  |
Restructure expense |  |  |  |  | $ 2,505
Employee Severance |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructure expense |  |  |  |  | 2,220
Other restructuring costs |  |  |  |  | 92
Operating Expense |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructure expense |  |  |  | $ 2,111 | 2,111
General and Administrative Expense |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructure expense |  |  |  | 109 | 109
Other restructuring costs |  |  |  | $ 285 | $ 285
Subsequent Event |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring and related cost, expected number of positions eliminated | numberOfEmployee | 34 |  |  |  |

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