XML 30 R18.htm IDEA: XBRL DOCUMENT
v3.23.3

Capital Stock | 9 Months Ended
--- | ---
Oct. 31, 2023
Equity [Abstract] |
Capital Stock | 9. Capital Stock Preference shares Since the Company’s initial public offering, or IPO, a total of 20,000,000 preference shares, with a $0.00045 par value per share, were authorized. There were no preference shares issued and outstanding as of October 31, 2023 and January 31, 2023, respectively. Ordinary shares As of October 31, 2023 and January 31, 2023, the following ordinary shares were reserved for future issuance under the Company’s equity plans and employee stock purchase plan:
|  | As of |
|  | October 31, 2023 |  |  | January 31, 2023 |
Shares reserved for options, restricted stock and restricted stock units under equity plans |  |  | 4,783,996 |  |  |  | 5,822,819 |
Shares reserved for employee stock purchase plan |  |  | 2,834,384 |  |  |  | 2,986,403 |
Stock repurchase program On May 26, 2023, the Company’s Board of Directors approved an extension of the Company's existing share repurchase program for an additional twelve months through June 30, 2024. There were no ordinary shares repurchased in the nine months ended October 31, 2023. As of October 31, 2023, there was approximately $49.0 million available for repurchases under the current repurchase program through June 30, 2024. Repurchases may be made from time-to-time through open market purchases, 10b5-1 plans or privately negotiated transactions subject to market conditions, applicable legal requirements and other relevant factors. The repurchase program does not obligate the Company to acquire any particular amount of ordinary shares, and it may be suspended at any time at the Company’s discretion. The repurchase program is funded using the Company’s working capital and any repurchased shares are recorded as authorized but unissued shares.

X
- Definition The entire disclosure of an entity's capital stock, shares repurchased, and shares reserved for future issuance. + References No definition available. + Details
Name: | amba_CapitalStockTextBlock
Namespace Prefix: | amba_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

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