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Restructuring - Schedule of Restructuring Charges (Details) - USD ($) $ in Thousands | 1 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jan. 31, 2024 | Oct. 31, 2024 | Jan. 31, 2026 | Jan. 31, 2025 | Jan. 31, 2024
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring Incurred Cost Statement Of Income Or Comprehensive Income Extensible Enumeration Not Disclosed Flag |  |  | statement of operations |  |
January 2024 Reorganization |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring charges |  |  | $ 0 |  | $ 12,654
September 2023 Reorganization |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring charges |  |  |  | $ 15,601 | 15,600
Cost of revenue | January 2024 Reorganization |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring charges |  |  |  |  | 632
Cost of revenue | September 2023 Reorganization |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring charges |  |  |  | 996 |
Research and development | January 2024 Reorganization |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring charges |  |  |  |  | 7,540
Research and development | September 2023 Reorganization |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring charges |  |  |  | 4,183 |
Sales and marketing | January 2024 Reorganization |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring charges |  |  |  |  | 500
Sales and marketing | September 2023 Reorganization |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring charges |  |  |  | 1,343 |
General and administrative | January 2024 Reorganization |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring charges |  |  |  |  | 3,982
General and administrative | September 2023 Reorganization |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring charges |  |  |  | 9,079 |
Severance and employment-related termination costs | September 2024 Reorganization |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring charges |  | $ 9,800 | 9,827 |  |
Severance and employment-related termination costs | January 2024 Reorganization |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring charges | $ 9,900 |  |  |  | 9,946
Severance and employment-related termination costs | September 2023 Reorganization |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring charges |  |  |  | 7,412 |
Severance and employment-related termination costs | Cost of revenue | September 2024 Reorganization |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring charges |  |  | 961 |  |
Severance and employment-related termination costs | Cost of revenue | January 2024 Reorganization |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring charges |  |  |  |  | 632
Severance and employment-related termination costs | Cost of revenue | September 2023 Reorganization |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring charges |  |  |  | 996 |
Severance and employment-related termination costs | Research and development | September 2024 Reorganization |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring charges |  |  | 2,867 |  |
Severance and employment-related termination costs | Research and development | January 2024 Reorganization |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring charges |  |  |  |  | 7,540
Severance and employment-related termination costs | Research and development | September 2023 Reorganization |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring charges |  |  |  | 4,183 |
Severance and employment-related termination costs | Sales and marketing | September 2024 Reorganization |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring charges |  |  | 5,066 |  |
Severance and employment-related termination costs | Sales and marketing | January 2024 Reorganization |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring charges |  |  |  |  | 500
Severance and employment-related termination costs | Sales and marketing | September 2023 Reorganization |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring charges |  |  |  | 1,343 |
Severance and employment-related termination costs | General and administrative | September 2024 Reorganization |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring charges |  |  | $ 933 |  |
Severance and employment-related termination costs | General and administrative | January 2024 Reorganization |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring charges |  |  |  |  | 1,274
Severance and employment-related termination costs | General and administrative | September 2023 Reorganization |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring charges |  |  |  | 890 |
Facility and other contract terminations | January 2024 Reorganization |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring charges | $ 2,700 |  |  |  | 2,708
Facility and other contract terminations | September 2023 Reorganization |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring charges |  |  |  | 8,189 |
Facility and other contract terminations | Cost of revenue | January 2024 Reorganization |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring charges |  |  |  |  | 0
Facility and other contract terminations | Cost of revenue | September 2023 Reorganization |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring charges |  |  |  | 0 |
Facility and other contract terminations | Research and development | January 2024 Reorganization |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring charges |  |  |  |  | 0
Facility and other contract terminations | Research and development | September 2023 Reorganization |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring charges |  |  |  | 0 |
Facility and other contract terminations | Sales and marketing | January 2024 Reorganization |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring charges |  |  |  |  | 0
Facility and other contract terminations | Sales and marketing | September 2023 Reorganization |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring charges |  |  |  | 0 |
Facility and other contract terminations | General and administrative | January 2024 Reorganization |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring charges |  |  |  |  | $ 2,708
Facility and other contract terminations | General and administrative | September 2023 Reorganization |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring charges |  |  |  | $ 8,189 |

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