XML 43 R37.htm IDEA: XBRL DOCUMENT
v3.24.3

Income Taxes (Tables) | 9 Months Ended
--- | ---
Oct. 31, 2024
Income Tax Disclosure [Abstract] |
Summary of Income Taxes | The following table provides details of income taxes for the periods indicated:
|  | Three Months Ended October 31, |  |  | Nine Months Ended October 31, |
|  | 2024 |  |  | 2023 |  |  | 2024 |  |  | 2023 |
|  | (in thousands) |
Loss before income taxes |  | $ | (23,419 | ) |  | $ | (40,065 | ) |  | $ | (94,735 | ) |  | $ | (108,923 | )
Provision (benefit) for income taxes |  |  | 652 |  |  |  | 1,645 |  |  |  | 2,157 |  |  |  | (113 | )
Effective tax rate |  | (2.8)% |  |  | (4.1)% |  |  | (2.3)% |  |  | 0.1% |

X
- Definition Schedule of income tax expense and effective tax rate. + References No definition available. + Details
Name: | amba_ScheduleOfIncomeTaxExpensesAndEffectiveTaxRateTableTableTextBlock
Namespace Prefix: | amba_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_IncomeTaxDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration