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Non-Controlling Interests - Summary Of Investments In Subsidiary By Noncontrolling Interests (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Apr. 30, 2023
Apr. 30, 2022
Apr. 30, 2021
May 01, 2021
 [1]
Disclosure of subsidiaries [line items]        
Loss allocated to non- controlling interests for the year $ (1,597) $ (1,653) [1] $ (803) [1]  
Non controlling interests $ 63,155 $ 2,514 [1]   $ 3,248
Fine Cosmos Development Limited [Member]        
Disclosure of subsidiaries [line items]        
Name of subsidiaries Fine Cosmos Development Limited Fine Cosmos Development Limited    
Non-controlling interests [member]        
Disclosure of subsidiaries [line items]        
Loss allocated to non- controlling interests for the year $ (1,597) $ (1,653) $ (803)  
Non controlling interests $ 63,155 2,514    
Non-controlling interests [member] | Fine Cosmos Development Limited [Member]        
Disclosure of subsidiaries [line items]        
Name of subsidiaries Fine Cosmos Development Limited      
Proportion of ownership interests held by non-controlling interests 51.00%      
Loss allocated to non- controlling interests for the year $ (762) 0    
Non controlling interests $ 25,315 0    
Non-controlling interests [member] | RCC Holdings Limited and Hotel Versante Limited [Member]        
Disclosure of subsidiaries [line items]        
Name of subsidiaries RCC Holdings Limited and Hotel Versante Limited      
Proportion of ownership interests held by non-controlling interests 49.00%      
Loss allocated to non- controlling interests for the year $ (47) 0    
Non controlling interests $ 33,772 0    
Non-controlling interests [member] | Individually immaterial subsidiaries with non-controlling interests [Member]        
Disclosure of subsidiaries [line items]        
Name of subsidiaries Individually immaterial subsidiaries with non-controlling interests      
Loss allocated to non- controlling interests for the year $ (788) (1,653)    
Non controlling interests $ 4,068 $ 2,514    
[1] The comparative consolidated financial statements have been re-presented from Hong Kong dollar to US$ to reflect the Company’s change in presentation currency. See note 1.