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Share-Based Compensation - Additional Information (Detail) - USD ($) $ in Thousands |  | 12 Months Ended |
--- | --- | --- | ---
Aug. 03, 2020 | Dec. 31, 2023 | Dec. 31, 2022 | Jul. 31, 2021
AMTD Digital [Member] |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |  |
Share-based compensation arrangement by share-based payment award, award vesting period | 3 years |  |  |
Share-based payment arrangement, expense |  | $ 207 | $ 205 |
Employee service share based compensation non vested awards total compensation cost not yet recognized |  | $ 50 | $ 229 |
Employee service share based compensation nonvested awards total compensation cost not yet recognized period for recognition1 |  | 7 months 6 days | 1 year 1 month 6 days |
AMTD Digital [Member] | Restricted Stock [Member] |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |  |
Share-based compensation arrangement by share-based payment award, number of shares available for grant |  |  |  | 17,540
Aggregate fair value for restricted stock units |  | $ 258 | $ 737 |
Share-based compensation arrangement by share-based payment award, equity instruments other than options, vested in period |  | 5,847 | 5,847 |
AMTD Digital [Member] | Common Class A [Member] |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |  |
Share-based compensation arrangement by share-based payment award, number of shares available for grant | 38,710 |  |  |
Share Incentive Two Thousand and Nineteen Plan [Member] |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |  |
Share-based compensation arrangement by share-based payment award, shares issued in period |  | 20,000,000 |  |
Percent of automatic increase of shares on total issued and outstanding share capital |  | 10.00% |  |
Percent of additional automatic increase of shares on total issued and outstanding share capital |  | 1.00% |  |

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