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Related Party Disclosures - Additional Information (Detail) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Apr. 30, 2023 | Apr. 30, 2021 | Apr. 30, 2022
Disclosure of transactions between related parties [line items] |  |  |
Purchase of treasury shares | $ 318,882 |  |
Borrowings | 50,803 |  |
Nonderivative Financial Liabilities Carrying Amount | $ 123,780 |  | $ 4,304
Borrowings maturity | 2 years |  |
AMTD IDEA Group [Member] |  |  |
Disclosure of transactions between related parties [line items] |  |  |
Borrowings interest rate | 2.00% |  |
Noninterest Bearing Amount Due To A Noncontrolling Shareholder [Member] |  |  |
Disclosure of transactions between related parties [line items] |  |  |
Borrowings | $ 20,681 |  |
Nonderivative Financial Liabilities Carrying Amount | 20,681 |  |
Interest Bearing Amount Due To A Non Controlling Shareholder [Member] |  |  |
Disclosure of transactions between related parties [line items] |  |  |
Nonderivative Financial Liabilities Carrying Amount | $ 33,122 |  |
Borrowings maturity | repayable within one year and the remaining balances of which are repayable on demand as at April 30, 2023. |  |
Hong Kong Interbank Offered Rate [Member] |  |  |
Disclosure of transactions between related parties [line items] |  |  |
Borrowings | $ 25,479 |  |
Borrowings Description Of Variable Interest Rate | variable rate of HIBOR plus 1.15% per annum |  |
Borrowings, adjustment to interest rate basis | 1.15% |  |
Hong Kong Interbank Offered Rate [Member] | Interest Bearing Amount Due To A Non Controlling Shareholder [Member] |  |  |
Disclosure of transactions between related parties [line items] |  |  |
Borrowings | $ 7,643 |  |
Borrowings Description Of Variable Interest Rate | variable rate of 2 times of HIBOR plus 1.15% per annum |  |
Borrowings, adjustment to interest rate basis | 1.15% |  |
Common Class B [Member] |  |  |
Disclosure of transactions between related parties [line items] |  |  |
Number of Treasury Shares Purchased | 616,346 |  |
Purchase of treasury shares | $ 318,882 |  |
AMTD Group [Member] |  |  |
Disclosure of transactions between related parties [line items] |  |  |
Amount receivable from related party set off | $ 81,972 | $ 73,616 |
Amount payable to related party set off |  | 45,469 |
Fellow Subsidiaries [Member] |  |  |
Disclosure of transactions between related parties [line items] |  |  |
Amount receivable from related party set off |  | 212,394 |
Amount payable to related party set off |  | $ 239,206 |

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