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Tax Assets and Liabilities - Additional Information (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Bottom of Range [Member]    
Disclosure Of Components Of Deferred Tax Assets And Liabilities [Line Items]    
Tax loss expiration period 2023  
Top of Range [Member]    
Disclosure Of Components Of Deferred Tax Assets And Liabilities [Line Items]    
Tax loss expiration period 2035  
Singapore and Indonesia Entity [Member]    
Disclosure Of Components Of Deferred Tax Assets And Liabilities [Line Items]    
Tax losses carried forward for an indefinite period $ 3,350  
Indian Subsidiaries [Member]    
Disclosure Of Components Of Deferred Tax Assets And Liabilities [Line Items]    
Unabsorbed depreciation carried forward for an indefinite period $ 27,622 $ 30,609