XML 45 R35.htm IDEA: XBRL DOCUMENT
v3.23.1

Income Taxes (Tables) | 3 Months Ended
--- | ---
Apr. 30, 2023
Income Tax Disclosure [Abstract] |
Summary of Income Taxes | The following table provides details of income taxes for the periods indicated:
|  | Three Months Ended April 30, |
|  | 2023 |  |  | 2022 |
|  | (in thousands) |
Loss before income taxes |  | $ | (34,256 | ) |  | $ | (10,412 | )
Provision for income taxes |  |  | 1,646 |  |  |  | 410 |
Effective tax rate |  | (4.8)% |  |  | (3.9)% |

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